SELECT 
  SQL_CALC_FOUND_ROWS (
    CASE WHEN products.parent_product_id <> 0 THEN products.parent_product_id ELSE products.product_id END
  ) AS product_id, 
  descr1.product as product, 
  companies.company as company_name, 
  GROUP_CONCAT(
    products.product_id 
    ORDER BY 
      products.parent_product_id ASC, 
      products.product_id ASC
  ) AS product_ids, 
  GROUP_CONCAT(
    products.product_type 
    ORDER BY 
      products.parent_product_id ASC, 
      products.product_id ASC
  ) AS product_types, 
  GROUP_CONCAT(
    products.parent_product_id 
    ORDER BY 
      products.parent_product_id ASC, 
      products.product_id ASC
  ) AS parent_product_ids, 
  products.product_type, 
  products.parent_product_id, 
  SUM(cscart_product_sales.amount) as sales_amount, 
  companies.city as abt__ut2_mv_company_city, 
  companies.country as abt__ut2_mv_company_country 
FROM 
  cscart_products as products 
  LEFT JOIN cscart_product_descriptions as descr1 ON descr1.product_id = products.product_id 
  AND descr1.lang_code = 'ar' 
  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) 
  INNER JOIN cscart_product_sales ON cscart_product_sales.product_id = products.product_id 
  AND cscart_product_sales.category_id = products_categories.category_id 
WHERE 
  1 
  AND cscart_categories.category_id IN (
    165, 166, 167, 168, 169, 170, 171, 172, 
    174, 175, 176, 177, 178, 179, 180, 181, 
    182, 185, 186, 187, 188, 189, 190, 191, 
    193, 194, 195, 196, 197, 198, 199, 200, 
    201, 202, 203, 204, 208, 209, 210, 211, 
    212, 213, 214, 215, 216, 217, 218, 219, 
    220, 221, 222, 223, 224, 225, 226, 227, 
    228, 229, 230, 231, 232, 234, 235, 236, 
    237, 238, 240, 241, 242, 243, 244, 245, 
    246, 247, 248, 249, 250, 251, 252, 253, 
    254, 255, 263
  ) 
  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 cscart_product_sales.amount >= 1 
  AND products.product_type != 'D' 
GROUP BY 
  cscart_product_sales.product_id 
ORDER BY 
  sales_amount desc, 
  products.product_id ASC 
LIMIT 
  0, 8

Query time 0.00500

JSON explain

{
  "query_block": {
    "select_id": 1,
    "filesort": {
      "sort_key": "sum(cscart_product_sales.amount) desc, products.product_id",
      "temporary_table": {
        "nested_loop": [
          {
            "read_sorted_file": {
              "filesort": {
                "sort_key": "cscart_product_sales.product_id",
                "table": {
                  "table_name": "cscart_product_sales",
                  "access_type": "ALL",
                  "possible_keys": ["PRIMARY", "pa"],
                  "rows": 5,
                  "filtered": 100,
                  "attached_condition": "cscart_product_sales.amount >= 1"
                }
              }
            }
          },
          {
            "table": {
              "table_name": "products",
              "access_type": "eq_ref",
              "possible_keys": ["PRIMARY", "status"],
              "key": "PRIMARY",
              "key_length": "3",
              "used_key_parts": ["product_id"],
              "ref": ["kigoonlinecs.cscart_product_sales.product_id"],
              "rows": 1,
              "filtered": 98.39357758,
              "attached_condition": "(products.usergroup_ids = '' or find_in_set(0,products.usergroup_ids) or find_in_set(1,products.usergroup_ids)) and products.`status` = 'A' and products.product_type <> 'D'"
            }
          },
          {
            "table": {
              "table_name": "cscart_categories",
              "access_type": "eq_ref",
              "possible_keys": ["PRIMARY", "c_status", "p_category_id"],
              "key": "PRIMARY",
              "key_length": "3",
              "used_key_parts": ["category_id"],
              "ref": ["kigoonlinecs.cscart_product_sales.category_id"],
              "rows": 1,
              "filtered": 100,
              "index_condition": "cscart_categories.category_id in (165,166,167,168,169,170,171,172,174,175,176,177,178,179,180,181,182,185,186,187,188,189,190,191,193,194,195,196,197,198,199,200,201,202,203,204,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,234,235,236,237,238,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,263)",
              "attached_condition": "(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)"
            }
          },
          {
            "table": {
              "table_name": "companies",
              "access_type": "eq_ref",
              "possible_keys": ["PRIMARY"],
              "key": "PRIMARY",
              "key_length": "4",
              "used_key_parts": ["company_id"],
              "ref": ["kigoonlinecs.products.company_id"],
              "rows": 1,
              "filtered": 100,
              "attached_condition": "companies.`status` = 'A'"
            }
          },
          {
            "table": {
              "table_name": "products_categories",
              "access_type": "eq_ref",
              "possible_keys": ["PRIMARY", "pt"],
              "key": "PRIMARY",
              "key_length": "6",
              "used_key_parts": ["category_id", "product_id"],
              "ref": [
                "kigoonlinecs.cscart_product_sales.category_id",
                "kigoonlinecs.cscart_product_sales.product_id"
              ],
              "rows": 1,
              "filtered": 100,
              "using_index": true
            }
          },
          {
            "table": {
              "table_name": "descr1",
              "access_type": "eq_ref",
              "possible_keys": ["PRIMARY", "product_id"],
              "key": "PRIMARY",
              "key_length": "9",
              "used_key_parts": ["product_id", "lang_code"],
              "ref": ["kigoonlinecs.cscart_product_sales.product_id", "const"],
              "rows": 1,
              "filtered": 100,
              "attached_condition": "trigcond(descr1.lang_code = 'ar')"
            }
          },
          {
            "table": {
              "table_name": "prices",
              "access_type": "ref",
              "possible_keys": [
                "usergroup",
                "product_id",
                "lower_limit",
                "usergroup_id"
              ],
              "key": "usergroup",
              "key_length": "3",
              "used_key_parts": ["product_id"],
              "ref": ["kigoonlinecs.cscart_product_sales.product_id"],
              "rows": 1,
              "filtered": 92.94117737,
              "attached_condition": "prices.lower_limit = 1 and prices.usergroup_id in (0,0,1)",
              "using_index": true
            }
          }
        ]
      }
    }
  }
}