SELECT 
  SQL_CALC_FOUND_ROWS products.product_id, 
  descr1.product as product, 
  companies.company as company_name, 
  MIN(
    IF(
      prices.percentage_discount = 0, 
      prices.price, 
      prices.price - (
        prices.price * prices.percentage_discount
      )/ 100
    )
  ) as price, 
  products.product_type, 
  products.parent_product_id, 
  products.rf_stop_update_price, 
  products.rf_stop_update_amount, 
  products.rf_stop_update_status 
FROM 
  cscart_products as products 
  LEFT JOIN cscart_product_descriptions as descr1 ON descr1.product_id = products.product_id 
  AND descr1.lang_code = 'en' 
  LEFT JOIN cscart_product_prices as prices ON prices.product_id = products.product_id 
  AND prices.lower_limit = 1 
  LEFT JOIN cscart_companies AS companies ON companies.company_id = products.company_id 
  INNER JOIN cscart_products_categories as products_categories ON products_categories.product_id = products.product_id 
  INNER JOIN cscart_categories ON cscart_categories.category_id = products_categories.category_id 
  AND (
    cscart_categories.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, cscart_categories.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, cscart_categories.usergroup_ids
    )
  ) 
  AND cscart_categories.status IN ('A', 'H') 
  AND cscart_categories.storefront_id IN (0, 1) 
WHERE 
  1 
  AND cscart_categories.category_id IN (7192) 
  AND companies.status IN ('A') 
  AND products.company_id IN (2, 8, 9, 10, 0) 
  AND (
    products.usergroup_ids = '' 
    OR FIND_IN_SET(0, products.usergroup_ids) 
    OR FIND_IN_SET(1, products.usergroup_ids)
  ) 
  AND products.status IN ('A') 
  AND prices.usergroup_id IN (0, 0, 1) 
  AND products.parent_product_id = 0 
  AND products.product_type != 'D' 
GROUP BY 
  products.product_id 
ORDER BY 
  price desc, 
  products.product_id ASC 
LIMIT 
  480, 96

Query time 0.03813

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1340.63"
    },
    "ordering_operation": {
      "using_filesort": true,
      "grouping_operation": {
        "using_temporary_table": true,
        "using_filesort": false,
        "nested_loop": [
          {
            "table": {
              "table_name": "cscart_categories",
              "access_type": "const",
              "possible_keys": [
                "PRIMARY",
                "c_status",
                "p_category_id"
              ],
              "key": "PRIMARY",
              "used_key_parts": [
                "category_id"
              ],
              "key_length": "3",
              "ref": [
                "const"
              ],
              "rows_examined_per_scan": 1,
              "rows_produced_per_join": 1,
              "filtered": "100.00",
              "cost_info": {
                "read_cost": "0.00",
                "eval_cost": "0.10",
                "prefix_cost": "0.00",
                "data_read_per_join": "2K"
              },
              "used_columns": [
                "category_id",
                "usergroup_ids",
                "status",
                "storefront_id"
              ]
            }
          },
          {
            "table": {
              "table_name": "companies",
              "access_type": "range",
              "possible_keys": [
                "PRIMARY"
              ],
              "key": "PRIMARY",
              "used_key_parts": [
                "company_id"
              ],
              "key_length": "4",
              "rows_examined_per_scan": 5,
              "rows_produced_per_join": 1,
              "filtered": "33.33",
              "cost_info": {
                "read_cost": "2.10",
                "eval_cost": "0.17",
                "prefix_cost": "2.26",
                "data_read_per_join": "10K"
              },
              "used_columns": [
                "company_id",
                "status",
                "company"
              ],
              "attached_condition": "((`nuie_scalesta_net`.`companies`.`status` = 'A') and (`nuie_scalesta_net`.`companies`.`company_id` in (2,8,9,10,0)))"
            }
          },
          {
            "table": {
              "table_name": "products_categories",
              "access_type": "ref",
              "possible_keys": [
                "PRIMARY",
                "pt"
              ],
              "key": "PRIMARY",
              "used_key_parts": [
                "category_id"
              ],
              "key_length": "3",
              "ref": [
                "const"
              ],
              "rows_examined_per_scan": 1751,
              "rows_produced_per_join": 2918,
              "filtered": "100.00",
              "using_index": true,
              "cost_info": {
                "read_cost": "1.48",
                "eval_cost": "291.83",
                "prefix_cost": "295.58",
                "data_read_per_join": "45K"
              },
              "used_columns": [
                "product_id",
                "category_id"
              ]
            }
          },
          {
            "table": {
              "table_name": "products",
              "access_type": "eq_ref",
              "possible_keys": [
                "PRIMARY",
                "age_verification",
                "status",
                "idx_parent_product_id",
                "my_supplier_id",
                "supplier_access_time",
                "products_rf_product_code_index",
                "products_rf_manufacturer_code_index"
              ],
              "key": "PRIMARY",
              "used_key_parts": [
                "product_id"
              ],
              "key_length": "3",
              "ref": [
                "nuie_scalesta_net.products_categories.product_id"
              ],
              "rows_examined_per_scan": 1,
              "rows_produced_per_join": 145,
              "filtered": "5.00",
              "cost_info": {
                "read_cost": "437.75",
                "eval_cost": "14.59",
                "prefix_cost": "1025.16",
                "data_read_per_join": "699K"
              },
              "used_columns": [
                "product_id",
                "product_type",
                "status",
                "company_id",
                "usergroup_ids",
                "parent_product_id",
                "rf_stop_update_price",
                "rf_stop_update_amount",
                "rf_stop_update_status"
              ],
              "attached_condition": "((`nuie_scalesta_net`.`products`.`company_id` = `nuie_scalesta_net`.`companies`.`company_id`) and (`nuie_scalesta_net`.`products`.`parent_product_id` = 0) and ((`nuie_scalesta_net`.`products`.`usergroup_ids` = '') or (0 <> find_in_set(0,`nuie_scalesta_net`.`products`.`usergroup_ids`)) or (0 <> find_in_set(1,`nuie_scalesta_net`.`products`.`usergroup_ids`))) and (`nuie_scalesta_net`.`products`.`status` = 'A') and (`nuie_scalesta_net`.`products`.`product_type` <> 'D'))"
            }
          },
          {
            "table": {
              "table_name": "descr1",
              "access_type": "eq_ref",
              "possible_keys": [
                "PRIMARY",
                "product_id"
              ],
              "key": "PRIMARY",
              "used_key_parts": [
                "product_id",
                "lang_code"
              ],
              "key_length": "9",
              "ref": [
                "nuie_scalesta_net.products_categories.product_id",
                "const"
              ],
              "rows_examined_per_scan": 1,
              "rows_produced_per_join": 145,
              "filtered": "100.00",
              "cost_info": {
                "read_cost": "21.89",
                "eval_cost": "14.59",
                "prefix_cost": "1061.64",
                "data_read_per_join": "556K"
              },
              "used_columns": [
                "product_id",
                "lang_code",
                "product"
              ]
            }
          },
          {
            "table": {
              "table_name": "prices",
              "access_type": "ref",
              "possible_keys": [
                "usergroup",
                "product_id",
                "lower_limit",
                "usergroup_id"
              ],
              "key": "usergroup",
              "used_key_parts": [
                "product_id"
              ],
              "key_length": "3",
              "ref": [
                "nuie_scalesta_net.products_categories.product_id"
              ],
              "rows_examined_per_scan": 16,
              "rows_produced_per_join": 240,
              "filtered": "9.92",
              "cost_info": {
                "read_cost": "37.14",
                "eval_cost": "24.00",
                "prefix_cost": "1340.63",
                "data_read_per_join": "5K"
              },
              "used_columns": [
                "product_id",
                "price",
                "percentage_discount",
                "lower_limit",
                "usergroup_id"
              ],
              "attached_condition": "((`nuie_scalesta_net`.`prices`.`lower_limit` = 1) and (`nuie_scalesta_net`.`prices`.`usergroup_id` in (0,0,1)))"
            }
          }
        ]
      }
    }
  }
}

Result

product_id product company_name price product_type parent_product_id rf_stop_update_price rf_stop_update_amount rf_stop_update_status
83046 Arno 600mm Wall Hung 2-Door Vanity & Laminate Top Roxor 410.83000000 P 0 N N N
83047 Arno 600mm Wall Hung 2-Door Vanity & Laminate Top Roxor 410.83000000 P 0 N N N
90882 Arno Wall Hung 2 Door Vanity & Laminate Worktop, 600mm Roxor 410.83000000 P 0 N N N
90883 Arno Wall Hung 2 Door Vanity & Laminate Worktop, 600mm Roxor 410.83000000 P 0 N N N
90961 Arno Wall Hung 2 Door Vanity & Laminate Worktop, 600mm Roxor 410.83000000 P 0 N N N
90962 Arno Wall Hung 2 Door Vanity & Laminate Worktop, 600mm Roxor 410.83000000 P 0 N N N
85330 Deco 800mm Wall Hung Single Drawer Vanity & Worktop Roxor 402.50000000 P 0 N N N
85427 Deco 800mm Wall Hung Single Drawer Vanity & Worktop Roxor 402.50000000 P 0 N N N
85478 Deco 800mm Wall Hung Single Drawer Vanity & Worktop Roxor 402.50000000 P 0 N N N
85529 Deco 800mm Wall Hung Single Drawer Vanity & Worktop Roxor 402.50000000 P 0 N N N
86497 Juno 600mm Wall Hung 2-Door Vanity & Laminate Top Roxor 402.50000000 P 0 N N N
86498 Juno 600mm Wall Hung 2-Door Vanity & Laminate Top Roxor 402.50000000 P 0 N N N
86773 Juno Wall Hung 2 Door Vanity Unit & Laminate Worktop, 600mm Roxor 402.50000000 P 0 N N N
86774 Juno Wall Hung 2 Door Vanity Unit & Laminate Worktop, 600mm Roxor 402.50000000 P 0 N N N
85311 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 401.67000000 P 0 N N N
85312 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 401.67000000 P 0 N N N
85408 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 401.67000000 P 0 N N N
85409 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 401.67000000 P 0 N N N
85459 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 401.67000000 P 0 N N N
85460 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 401.67000000 P 0 N N N
85510 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 401.67000000 P 0 N N N
85511 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 401.67000000 P 0 N N N
85075 Fluted 600mm Wall Hung Single Drawer Vanity and Laminate Top Roxor 400.83000000 P 0 N N N
85161 Fluted 600mm Wall Hung Single Drawer Vanity and Laminate Top Roxor 400.83000000 P 0 N N N
85207 Fluted 600mm Wall Hung Single Drawer Vanity and Laminate Top Roxor 400.83000000 P 0 N N N
85253 Fluted 600mm Wall Hung Single Drawer Vanity and Laminate Top Roxor 400.83000000 P 0 N N N
82846 Arno 800mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 399.17000000 P 0 N N N
82919 Arno 800mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 399.17000000 P 0 N N N
82992 Arno 800mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 399.17000000 P 0 N N N
83068 Arno 800mm Wall Hung 1-Drawer Vanity & Worktop Roxor 399.17000000 P 0 N N N
83476 Athena Wall Hung Single Drawer Vanity With Grey Worktop 800mm Roxor 399.17000000 P 0 N N N
83484 Athena Wall Hung Single Drawer Vanity With Grey Worktop 800mm Roxor 399.17000000 P 0 N N N
83621 Athena Wall Hung Single Drawer Vanity With Worktop 800mm Roxor 399.17000000 P 0 N N N
90904 Arno Wall Hung 1 Drawer Vanity & Laminate Worktop, 800mm Roxor 399.17000000 P 0 N N N
90983 Arno Wall Hung 1 Drawer Vanity & Laminate Worktop, 800mm Roxor 399.17000000 P 0 N N N
83034 Arno 600mm Wall Hung 1-Drawer Vanity & Laminate Top Roxor 398.33000000 P 0 N N N
83591 Athena Wall Hung Single Drawer Vanity With Grey Worktop 600mm Roxor 398.33000000 P 0 N N N
90870 Arno Wall Hung 1 Drawer Vanity & Laminate Worktop, 600mm Roxor 398.33000000 P 0 N N N
90949 Arno Wall Hung 1 Drawer Vanity & Laminate Worktop, 600mm Roxor 398.33000000 P 0 N N N
85357 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 396.67000000 P 0 N N N
85358 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 396.67000000 P 0 N N N
85115 Fluted 600mm Wall Hung Single Drawer Vanity and Laminate Top Roxor 395.83000000 P 0 N N N
85376 Deco 800mm Wall Hung Single Drawer Vanity & Worktop Roxor 395.83000000 P 0 N N N
82816 Arno 600mm Wall Hung 1-Drawer Vanity & Laminate Top Roxor 393.33000000 P 0 N N N
82817 Arno 600mm Wall Hung 1-Drawer Vanity & Laminate Top Roxor 393.33000000 P 0 N N N
82889 Arno 600mm Wall Hung 1-Drawer Vanity & Laminate Top Roxor 393.33000000 P 0 N N N
82890 Arno 600mm Wall Hung 1-Drawer Vanity & Laminate Top Roxor 393.33000000 P 0 N N N
82962 Arno 600mm Wall Hung 1-Drawer Vanity & Laminate Top Roxor 393.33000000 P 0 N N N
82963 Arno 600mm Wall Hung 1-Drawer Vanity & Laminate Top Roxor 393.33000000 P 0 N N N
83336 Athena Wall Hung Single Drawer Vanity With Sparkling Black Worktop 600mm Roxor 393.33000000 P 0 N N N
83337 Athena Wall Hung Single Drawer Vanity With Sparkling White Worktop 600mm Roxor 393.33000000 P 0 N N N
83346 Athena Wall Hung Single Drawer Vanity With Sparkling Black Worktop 600mm Roxor 393.33000000 P 0 N N N
83347 Athena Wall Hung Single Drawer Vanity With Sparkling White Worktop 600mm Roxor 393.33000000 P 0 N N N
86488 Juno 600mm Wall Hung Single Drawer Vanity & Worktop Roxor 389.17000000 P 0 N N N
86764 Juno Wall Hung 1 Drawer Vanity Unit & Colour Match Worktop, 600mm Roxor 389.17000000 P 0 N N N
83548 Athena Floor Standing 2 Door Vanity With Worktop 500mm Roxor 381.67000000 P 0 N N N
85078 Fluted 600mm Wall Hung Single Drawer Vanity and Worktop Roxor 380.00000000 P 0 N N N
85164 Fluted 600mm Wall Hung Single Drawer Vanity and Worktop Roxor 380.00000000 P 0 N N N
85210 Fluted 600mm Wall Hung Single Drawer Vanity and Worktop Roxor 380.00000000 P 0 N N N
85256 Fluted 600mm Wall Hung Single Drawer Vanity and Worktop Roxor 380.00000000 P 0 N N N
86623 Juno 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 379.17000000 P 0 N N N
86692 Juno 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 379.17000000 P 0 N N N
82597 Arno 600mm Wall Hung 1-Drawer Vanity & Laminate Top Roxor 377.50000000 P 0 N N N
82598 Arno 600mm Wall Hung 1-Drawer Vanity & Laminate Top Roxor 377.50000000 P 0 N N N
83037 Arno 600mm Wall Hung 1-Drawer Vanity & Worktop Roxor 377.50000000 P 0 N N N
83045 Arno 600mm Wall Hung 2-Door Vanity & Laminate Top Roxor 377.50000000 P 0 N N N
83360 Athena Wall Hung Single Drawer Vanity With Sparkling Black Worktop 600mm Roxor 377.50000000 P 0 N N N
83361 Athena Wall Hung Single Drawer Vanity With Sparkling White Worktop 600mm Roxor 377.50000000 P 0 N N N
83594 Athena Wall Hung Single Drawer Vanity With Worktop 600mm Roxor 377.50000000 P 0 N N N
90873 Arno Wall Hung 1 Drawer Vanity & Laminate Worktop, 600mm Roxor 377.50000000 P 0 N N N
90881 Arno Wall Hung 2 Door Vanity & Laminate Worktop, 600mm Roxor 377.50000000 P 0 N N N
90952 Arno Wall Hung 1 Drawer Vanity & Laminate Worktop, 600mm Roxor 377.50000000 P 0 N N N
90960 Arno Wall Hung 2 Door Vanity & Laminate Worktop, 600mm Roxor 377.50000000 P 0 N N N
82621 Arno 600mm Wall Hung 2-Drawer Vanity & Worktop Roxor 375.83000000 P 0 N N N
83424 Athena Wall Hung 2 Drawer Vanity With Worktop 600mm Roxor 375.83000000 P 0 N N N
85118 Fluted 600mm Wall Hung Single Drawer Vanity and Worktop Roxor 375.00000000 P 0 N N N
82627 Arno 800mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 373.33000000 P 0 N N N
83492 Athena Wall Hung Single Drawer Vanity With Grey Worktop 800mm Roxor 373.33000000 P 0 N N N
83258 Athena Floor Standing 2 Door Vanity With Worktop 600mm Roxor 372.50000000 P 0 N N N
83265 Athena Floor Standing 2 Door Vanity With Worktop 600mm Roxor 372.50000000 P 0 N N N
86496 Juno 600mm Wall Hung 2-Door Vanity & Laminate Top Roxor 369.17000000 P 0 N N N
86657 Juno 800mm Wall Hung Single Drawer Vanity & Worktop Roxor 369.17000000 P 0 N N N
86726 Juno 800mm Wall Hung Single Drawer Vanity & Worktop Roxor 369.17000000 P 0 N N N
86772 Juno Wall Hung 2 Door Vanity Unit & Laminate Worktop, 600mm Roxor 369.17000000 P 0 N N N
85310 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 368.33000000 P 0 N N N
85407 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 368.33000000 P 0 N N N
85458 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 368.33000000 P 0 N N N
85509 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 368.33000000 P 0 N N N
86635 Juno 600mm Wall Hung 2-Door Vanity & Laminate Top Roxor 368.33000000 P 0 N N N
86636 Juno 600mm Wall Hung 2-Door Vanity & Laminate Top Roxor 368.33000000 P 0 N N N
86704 Juno 600mm Wall Hung 2-Door Vanity & Laminate Top Roxor 368.33000000 P 0 N N N
86705 Juno 600mm Wall Hung 2-Door Vanity & Laminate Top Roxor 368.33000000 P 0 N N N
85356 Deco 600mm Wall Hung Single Drawer Vanity & Laminate Top Roxor 363.33000000 P 0 N N N
82815 Arno 600mm Wall Hung 1-Drawer Vanity & Laminate Top Roxor 360.00000000 P 0 N N N
82888 Arno 600mm Wall Hung 1-Drawer Vanity & Laminate Top Roxor 360.00000000 P 0 N N N
82961 Arno 600mm Wall Hung 1-Drawer Vanity & Laminate Top Roxor 360.00000000 P 0 N N N