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 (
        62541, 62542, 62543, 62544, 62545, 62546, 
        62547, 62548, 62549, 62550, 62551, 
        62552, 62553, 62554, 62555, 62556, 
        62557, 62558, 62559, 62560, 62561, 
        62562, 62563, 62564, 62565
      )
    ) 
    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 0.00120

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 25 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
62565 Face Off (Hardclash Remix) Toolbox Digital Shop P 0
62564 Gravity (Original Mix) Toolbox Digital Shop P 0
62563 Far Away (GHDA Remix) Toolbox Digital Shop P 0
62562 Happy Run (Instrument Mix) Toolbox Digital Shop P 0
62561 Beanbags (Original Mix) Toolbox Digital Shop P 0
62560 Duckface (Original Mix) Toolbox Digital Shop P 0
62559 Last Game (Original Mix) Toolbox Digital Shop P 0
62558 Turbo Generated (Original Mix) Toolbox Digital Shop P 0
62557 Looking For A Groove (Original Mix) Toolbox Digital Shop P 0
62556 Running (Original Mix) Toolbox Digital Shop P 0
62555 When It's Dark And There's No One (Remix B) Toolbox Digital Shop P 0
62554 Liberation (Original Mix) Toolbox Digital Shop P 0
62553 No Joke (Original Mix) Toolbox Digital Shop P 0
62552 Dead End Dancefloor (Original Mix) Toolbox Digital Shop P 0
62551 I'll Be With You (Original Mix) Toolbox Digital Shop P 0
62550 Save My Life (Ganar 2016 Remix) Toolbox Digital Shop P 0
62549 Supreme (Original Mix) Toolbox Digital Shop P 0
62548 Symphony Of Salvation (Original Mix) Toolbox Digital Shop P 0
62547 Retro 17 (Original Mix) Toolbox Digital Shop P 0
62546 Tell Me (Original Mix) Toolbox Digital Shop P 0
62545 Religion (Original Mix) Toolbox Digital Shop P 0
62544 Fractals (Original Mix) Toolbox Digital Shop P 0
62543 Pika Girl (LFZ Remix) Toolbox Digital Shop P 0
62542 Be The Cure (DJ Oskar Remix) Toolbox Digital Shop P 0
62541 Neckbreaker (M-Project & Mitomoro Remix) Toolbox Digital Shop P 0