SELECT 
  name, 
  value 
FROM 
  cscart_sd_devices_layout_storefronts_settings 
WHERE 
  storefront_id = 1

Query time 0.00034

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.15"
    },
    "table": {
      "table_name": "cscart_sd_devices_layout_storefronts_settings",
      "access_type": "ALL",
      "rows_examined_per_scan": 9,
      "rows_produced_per_join": 1,
      "filtered": "11.11",
      "cost_info": {
        "read_cost": "1.05",
        "eval_cost": "0.10",
        "prefix_cost": "1.15",
        "data_read_per_join": "408"
      },
      "used_columns": [
        "storefront_id",
        "name",
        "value"
      ],
      "attached_condition": "(`nuie_scalesta_net`.`cscart_sd_devices_layout_storefronts_settings`.`storefront_id` = 1)"
    }
  }
}