SELECT 
  SQL_CALC_FOUND_ROWS products.product_id, 
  descr1.product as product, 
  companies.company as company_name, 
  products.product_type, 
  products.parent_product_id 
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 (234, 235, 236, 237, 238, 240) 
  AND companies.status IN ('A') 
  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 
  product asc, 
  products.product_id ASC 
LIMIT 
  0, 12

Query time 0.00487

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "251.05"
    },
    "ordering_operation": {
      "using_filesort": true,
      "grouping_operation": {
        "using_temporary_table": true,
        "using_filesort": false,
        "nested_loop": [
          {
            "table": {
              "table_name": "companies",
              "access_type": "ALL",
              "rows_examined_per_scan": 2,
              "rows_produced_per_join": 1,
              "filtered": "50.00",
              "cost_info": {
                "read_cost": "0.62",
                "eval_cost": "0.10",
                "prefix_cost": "0.72",
                "data_read_per_join": "6K"
              },
              "used_columns": [
                "company_id",
                "status",
                "company"
              ],
              "attached_condition": "(`mobikul_delivery_boy_livedemo`.`companies`.`status` = 'A')"
            }
          },
          {
            "table": {
              "table_name": "products",
              "access_type": "ALL",
              "rows_examined_per_scan": 248,
              "rows_produced_per_join": 0,
              "filtered": "0.40",
              "using_join_buffer": "hash join",
              "cost_info": {
                "read_cost": "29.16",
                "eval_cost": "0.10",
                "prefix_cost": "30.10",
                "data_read_per_join": "4K"
              },
              "used_columns": [
                "product_id",
                "product_type",
                "status",
                "company_id",
                "usergroup_ids",
                "parent_product_id"
              ],
              "attached_condition": "((`mobikul_delivery_boy_livedemo`.`products`.`company_id` = `mobikul_delivery_boy_livedemo`.`companies`.`company_id`) and (`mobikul_delivery_boy_livedemo`.`products`.`parent_product_id` = 0) and ((`mobikul_delivery_boy_livedemo`.`products`.`usergroup_ids` = '') or (0 <> find_in_set(0,`mobikul_delivery_boy_livedemo`.`products`.`usergroup_ids`)) or (0 <> find_in_set(1,`mobikul_delivery_boy_livedemo`.`products`.`usergroup_ids`))) and (`mobikul_delivery_boy_livedemo`.`products`.`status` = 'A') and (`mobikul_delivery_boy_livedemo`.`products`.`product_type` <> 'D'))"
            }
          },
          {
            "table": {
              "table_name": "prices",
              "access_type": "ALL",
              "rows_examined_per_scan": 254,
              "rows_produced_per_join": 0,
              "filtered": "0.39",
              "using_join_buffer": "hash join",
              "cost_info": {
                "read_cost": "25.58",
                "eval_cost": "0.10",
                "prefix_cost": "56.45",
                "data_read_per_join": "23"
              },
              "used_columns": [
                "product_id",
                "lower_limit",
                "usergroup_id"
              ],
              "attached_condition": "((`mobikul_delivery_boy_livedemo`.`prices`.`lower_limit` = 1) and (`mobikul_delivery_boy_livedemo`.`prices`.`product_id` = `mobikul_delivery_boy_livedemo`.`products`.`product_id`) and (`mobikul_delivery_boy_livedemo`.`prices`.`usergroup_id` in (0,0,1)))"
            }
          },
          {
            "table": {
              "table_name": "cscart_categories",
              "access_type": "ALL",
              "rows_examined_per_scan": 84,
              "rows_produced_per_join": 1,
              "filtered": "2.00",
              "using_join_buffer": "hash join",
              "cost_info": {
                "read_cost": "9.14",
                "eval_cost": "0.17",
                "prefix_cost": "65.75",
                "data_read_per_join": "4K"
              },
              "used_columns": [
                "category_id",
                "storefront_id",
                "usergroup_ids",
                "status"
              ],
              "attached_condition": "((`mobikul_delivery_boy_livedemo`.`cscart_categories`.`category_id` in (234,235,236,237,238,240)) and ((`mobikul_delivery_boy_livedemo`.`cscart_categories`.`usergroup_ids` = '') or (0 <> find_in_set(0,`mobikul_delivery_boy_livedemo`.`cscart_categories`.`usergroup_ids`)) or (0 <> find_in_set(1,`mobikul_delivery_boy_livedemo`.`cscart_categories`.`usergroup_ids`))) and (`mobikul_delivery_boy_livedemo`.`cscart_categories`.`status` in ('A','H')) and (`mobikul_delivery_boy_livedemo`.`cscart_categories`.`storefront_id` in (0,1)))"
            }
          },
          {
            "table": {
              "table_name": "products_categories",
              "access_type": "ALL",
              "rows_examined_per_scan": 268,
              "rows_produced_per_join": 4,
              "filtered": "1.00",
              "using_join_buffer": "hash join",
              "cost_info": {
                "read_cost": "0.74",
                "eval_cost": "0.45",
                "prefix_cost": "111.51",
                "data_read_per_join": "72"
              },
              "used_columns": [
                "product_id",
                "category_id"
              ],
              "attached_condition": "((`mobikul_delivery_boy_livedemo`.`products_categories`.`product_id` = `mobikul_delivery_boy_livedemo`.`products`.`product_id`) and (`mobikul_delivery_boy_livedemo`.`products_categories`.`category_id` = `mobikul_delivery_boy_livedemo`.`cscart_categories`.`category_id`))"
            }
          },
          {
            "table": {
              "table_name": "descr1",
              "access_type": "ALL",
              "rows_examined_per_scan": 248,
              "rows_produced_per_join": 1116,
              "filtered": "100.00",
              "using_join_buffer": "hash join",
              "cost_info": {
                "read_cost": "27.88",
                "eval_cost": "111.66",
                "prefix_cost": "251.05",
                "data_read_per_join": "4M"
              },
              "used_columns": [
                "product_id",
                "lang_code",
                "product"
              ],
              "attached_condition": "<if>(is_not_null_compl(descr1), ((`mobikul_delivery_boy_livedemo`.`descr1`.`product_id` = `mobikul_delivery_boy_livedemo`.`products`.`product_id`) and (`mobikul_delivery_boy_livedemo`.`descr1`.`lang_code` = 'en')), true)"
            }
          }
        ]
      }
    }
  }
}