SELECT 
  SQL_CALC_FOUND_ROWS products.product_id, 
  IF(
    shared_descr.product_id IS NOT NULL, 
    shared_descr.product, 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) 
  LEFT JOIN cscart_ult_product_descriptions shared_descr ON shared_descr.product_id = products.product_id 
  AND shared_descr.company_id = 1 
  AND shared_descr.lang_code = 'en' 
  LEFT JOIN cscart_product_restricted_countries AS prc ON prc.product_id = products.product_id 
  AND prc.country_code = 'US' 
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 prices.usergroup_id IN (0, 0, 1) 
  AND (
    (
      1 
      AND products.product_id IN (
        119688, 119689, 119690, 119691, 119692, 
        119693, 119694, 119695, 119696, 119697, 
        119698, 119699, 119700, 119701, 119702, 
        119703, 119704, 119705, 119706, 119707, 
        119708, 119709
      )
    ) 
    AND companies.status IN ('A') 
    AND prices.usergroup_id IN (0, 0, 1)
  ) 
  AND (
    products.available_worldwide = 'Y' 
    OR prc.country_code IS NULL
  ) 
GROUP BY 
  products.product_id 
ORDER BY 
  products.timestamp desc, 
  products.product_id desc, 
  products.product_id ASC

Query time 0.00099

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE companies ALL PRIMARY 1 Using where; Using temporary; Using filesort
1 SIMPLE products range PRIMARY,status PRIMARY 3 22 Using where; Using join buffer (flat, BNL join)
1 SIMPLE shared_descr eq_ref PRIMARY,product_id,company_id PRIMARY 13 toolboxdigitalshop_dev.products.product_id,const,const 1 Using where
1 SIMPLE prc eq_ref PRIMARY PRIMARY 9 toolboxdigitalshop_dev.products.product_id,const 1 Using where; Using index
1 SIMPLE prices ref usergroup,product_id,lower_limit,usergroup_id usergroup 3 toolboxdigitalshop_dev.products.product_id 1 Using where; Using index
1 SIMPLE descr1 eq_ref PRIMARY,product_id PRIMARY 9 toolboxdigitalshop_dev.products.product_id,const 1 Using where
1 SIMPLE products_categories ref PRIMARY,pt pt 3 toolboxdigitalshop_dev.products.product_id 1 Using index
1 SIMPLE cscart_categories eq_ref PRIMARY,c_status,p_category_id PRIMARY 3 toolboxdigitalshop_dev.products_categories.category_id 1 Using where

Result

product_id product company_name product_type parent_product_id
119709 The Sound Of Now (Original Mix) Toolbox Digital Shop P 0
119708 U Got My Love (Original Mix) Toolbox Digital Shop P 0
119707 Eyeball's Theme (Original Mix) Toolbox Digital Shop P 0
119706 Just A Little Closer (SystemShock Remix) Toolbox Digital Shop P 0
119705 You Are Alive (Original Mix) Toolbox Digital Shop P 0
119704 Maybe (Shine Forever) (Smokey's 2023 Remix) Toolbox Digital Shop P 0
119703 Everytime You Touch Me (Original Mix) Toolbox Digital Shop P 0
119702 Make U Sweat (Groove Control Remix) Toolbox Digital Shop P 0
119701 Ordinary World (Ben Vennard Remix) Toolbox Digital Shop P 0
119700 Always Pumpin (Original Mix) Toolbox Digital Shop P 0
119699 Another Level (G.W.R. & Cupra 3am Remix) Toolbox Digital Shop P 0
119698 Do It (Original Mix) Toolbox Digital Shop P 0
119697 Rofo's Theme (Kid Dynamo Remix) Toolbox Digital Shop P 0
119696 Thinkin About U (Extended Mix) Toolbox Digital Shop P 0
119695 Left Right (Original Mix) Toolbox Digital Shop P 0
119694 Trust (Mikey Remix) Toolbox Digital Shop P 0
119693 All I Need (Extended Mix) Toolbox Digital Shop P 0
119692 Enter The Rave (Original Mix) Toolbox Digital Shop P 0
119691 Temptation (Original Mix) Toolbox Digital Shop P 0
119690 On A Night Like This (Catchy's Balearic Remix) Toolbox Digital Shop P 0
119689 Dirty Cash (Base 22 Remix) Toolbox Digital Shop P 0
119688 Smasha (Original Mix) Toolbox Digital Shop P 0