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 (
        78055, 78056, 78057, 78058, 78059, 78060, 
        78061, 78062, 78063, 78064, 78065, 
        78066, 78067, 78068, 78069, 78070, 
        78071, 78072, 78073, 78074, 78075, 
        78076, 78077, 78078, 78079, 78080, 
        78081
      )
    ) 
    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 0.00143

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 27 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
78081 The Cook (Original Mix) Toolbox Digital Shop P 0
78080 Rebirth (Original Mix) Toolbox Digital Shop P 0
78079 Broken Boundaries (Costa Pantazis Remix) Toolbox Digital Shop P 0
78078 Love Song (Ati Rider's 2015 Rework) Toolbox Digital Shop P 0
78077 Fear & Loathing (Original Mix) Toolbox Digital Shop P 0
78076 Push (Original Mix) Toolbox Digital Shop P 0
78075 Reach Out (Original Mix) Toolbox Digital Shop P 0
78074 Fly Away (Original Mix) Toolbox Digital Shop P 0
78073 Ready To Fly (Original Mix) Toolbox Digital Shop P 0
78072 Lightening Force (Original Mix) Toolbox Digital Shop P 0
78071 Odious (Original Mix) Toolbox Digital Shop P 0
78070 Incoming Transmission (Original Mix) Toolbox Digital Shop P 0
78069 The Test (Original Mix) Toolbox Digital Shop P 0
78068 Laserblast (Original Mix) Toolbox Digital Shop P 0
78067 Boom Stick (Original Mix) Toolbox Digital Shop P 0
78066 Dance With Me (Original Mix) Toolbox Digital Shop P 0
78065 Face Breaker (Original Mix) Toolbox Digital Shop P 0
78064 Fight! (Original Mix) Toolbox Digital Shop P 0
78063 Lets Do This! (Original Mix) Toolbox Digital Shop P 0
78062 On My Way (Original Mix) Toolbox Digital Shop P 0
78061 Acetate (Original Mix) Toolbox Digital Shop P 0
78060 Haterz (Original Mix) Toolbox Digital Shop P 0
78059 Am I Crazy (Original Mix) Toolbox Digital Shop P 0
78058 Time To Rock (Original Mix) Toolbox Digital Shop P 0
78057 Words Are Not Enough (Original Mix) Toolbox Digital Shop P 0
78056 Night Lover (Original Mix) Toolbox Digital Shop P 0
78055 Butterfly Effect (Original Mix) Toolbox Digital Shop P 0