SELECT 
  SQL_CALC_FOUND_ROWS products.product_id, 
  products.amount, 
  descr1.product as product, 
  companies.company as company_name, 
  variation_group_products.group_id AS variation_group_id, 
  products.product_type, 
  products.parent_product_id, 
  IF(
    products.age_verification = 'Y', 
    'Y', 
    IF(
      cscart_categories.age_verification = 'Y', 
      'Y', cscart_categories.parent_age_verification
    )
  ) as need_age_verification, 
  IF(
    products.age_limit > cscart_categories.age_limit, 
    IF(
      products.age_limit > cscart_categories.parent_age_limit, 
      products.age_limit, cscart_categories.parent_age_limit
    ), 
    IF(
      cscart_categories.age_limit > cscart_categories.parent_age_limit, 
      cscart_categories.age_limit, cscart_categories.parent_age_limit
    )
  ) as age_limit, 
  (
    opt_prices.product_id IS NOT NULL 
    AND abt_normal_prices.price > 0
  ) AS ab__is_qty_discount 
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_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) 
  LEFT JOIN cscart_warehouses_sum_products_amount as war_sum_amount ON war_sum_amount.product_id = products.product_id 
  INNER JOIN cscart_product_variation_group_products AS variation_group_products ON variation_group_products.product_id = products.product_id 
  LEFT JOIN cscart_product_prices AS opt_prices ON opt_prices.product_id = products.product_id 
  AND opt_prices.lower_limit > 1 
  AND opt_prices.usergroup_id IN (0, 1) 
  LEFT JOIN cscart_product_prices AS abt_normal_prices ON abt_normal_prices.product_id = products.product_id 
  AND abt_normal_prices.lower_limit = 1 
WHERE 
  1 
  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 variation_group_products.group_id IN (338, 358, 352, 348, 342, 323, 343) 
  AND products.product_type != 'D' 
GROUP BY 
  products.product_id 
ORDER BY 
  NULL asc

Query time 0.00122

JSON explain

{
  "query_block": {
    "select_id": 1,
    "temporary_table": {
      "table": {
        "table_name": "variation_group_products",
        "access_type": "range",
        "possible_keys": ["PRIMARY", "idx_group_id"],
        "key": "idx_group_id",
        "key_length": "3",
        "used_key_parts": ["group_id"],
        "rows": 18,
        "filtered": 100,
        "index_condition": "variation_group_products.group_id in (338,358,352,348,342,323,343)"
      },
      "table": {
        "table_name": "products",
        "access_type": "eq_ref",
        "possible_keys": ["PRIMARY", "status"],
        "key": "PRIMARY",
        "key_length": "3",
        "used_key_parts": ["product_id"],
        "ref": ["ymonline_livedata.variation_group_products.product_id"],
        "rows": 1,
        "filtered": 60.81953049,
        "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": "companies",
        "access_type": "eq_ref",
        "possible_keys": ["PRIMARY"],
        "key": "PRIMARY",
        "key_length": "4",
        "used_key_parts": ["company_id"],
        "ref": ["ymonline_livedata.products.company_id"],
        "rows": 1,
        "filtered": 100,
        "attached_condition": "companies.`status` = 'A'"
      },
      "table": {
        "table_name": "opt_prices",
        "access_type": "ref",
        "possible_keys": ["usergroup", "product_id", "lower_limit", "usergroup_id"],
        "key": "product_id",
        "key_length": "3",
        "used_key_parts": ["product_id"],
        "ref": ["ymonline_livedata.variation_group_products.product_id"],
        "rows": 1,
        "filtered": 3.174609423,
        "attached_condition": "trigcond(opt_prices.lower_limit > 1 and opt_prices.usergroup_id in (0,1))"
      },
      "table": {
        "table_name": "descr1",
        "access_type": "ref",
        "possible_keys": ["PRIMARY", "product_id"],
        "key": "product_id",
        "key_length": "3",
        "used_key_parts": ["product_id"],
        "ref": ["ymonline_livedata.variation_group_products.product_id"],
        "rows": 1,
        "filtered": 100,
        "attached_condition": "trigcond(descr1.lang_code = 'en')"
      },
      "table": {
        "table_name": "abt_normal_prices",
        "access_type": "ref",
        "possible_keys": ["usergroup", "product_id", "lower_limit"],
        "key": "product_id",
        "key_length": "3",
        "used_key_parts": ["product_id"],
        "ref": ["ymonline_livedata.variation_group_products.product_id"],
        "rows": 1,
        "filtered": 95.75352478,
        "attached_condition": "trigcond(abt_normal_prices.lower_limit = 1)"
      },
      "table": {
        "table_name": "products_categories",
        "access_type": "ref",
        "possible_keys": ["PRIMARY", "pt"],
        "key": "pt",
        "key_length": "3",
        "used_key_parts": ["product_id"],
        "ref": ["ymonline_livedata.variation_group_products.product_id"],
        "rows": 1,
        "filtered": 100
      },
      "table": {
        "table_name": "cscart_categories",
        "access_type": "ref",
        "possible_keys": ["PRIMARY", "c_status", "p_category_id"],
        "key": "p_category_id",
        "key_length": "3",
        "used_key_parts": ["category_id"],
        "ref": ["ymonline_livedata.products_categories.category_id"],
        "rows": 1,
        "filtered": 100,
        "index_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')",
        "attached_condition": "cscart_categories.storefront_id in (0,1)"
      },
      "table": {
        "table_name": "war_sum_amount",
        "access_type": "ref",
        "possible_keys": ["PRIMARY"],
        "key": "PRIMARY",
        "key_length": "3",
        "used_key_parts": ["product_id"],
        "ref": ["ymonline_livedata.variation_group_products.product_id"],
        "rows": 19,
        "filtered": 100,
        "using_index": true
      }
    }
  }
}