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 cscart_categories.category_id IN (66) 
  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 (
    products.available_worldwide = 'Y' 
    OR prc.country_code IS NULL
  ) 
  AND products.parent_product_id = 0 
GROUP BY 
  products.product_id 
ORDER BY 
  products.timestamp desc, 
  products.product_id desc, 
  products.product_id ASC 
LIMIT 
  0, 30

Query time 0.00130

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE cscart_categories const PRIMARY,c_status,p_category_id PRIMARY 3 const 1 Using temporary; Using filesort
1 SIMPLE companies ALL PRIMARY 1 Using where
1 SIMPLE products_categories ref PRIMARY,pt PRIMARY 3 const 31 Using index
1 SIMPLE prices ref usergroup,product_id,lower_limit,usergroup_id usergroup 3 toolboxdigitalshop_dev.products_categories.product_id 1 Using where; Using index
1 SIMPLE products eq_ref PRIMARY,status,idx_parent_product_id PRIMARY 3 toolboxdigitalshop_dev.products_categories.product_id 1 Using where
1 SIMPLE shared_descr eq_ref PRIMARY,product_id,company_id PRIMARY 13 toolboxdigitalshop_dev.products_categories.product_id,const,const 1 Using where
1 SIMPLE prc eq_ref PRIMARY PRIMARY 9 toolboxdigitalshop_dev.products_categories.product_id,const 1 Using where; Using index
1 SIMPLE descr1 eq_ref PRIMARY,product_id PRIMARY 9 toolboxdigitalshop_dev.products_categories.product_id,const 1 Using where

Result

product_id product company_name product_type parent_product_id
125022 Everytime (Original Mix) Toolbox Digital Shop P 0
124984 Funk Freak (Original Mix) Toolbox Digital Shop P 0
124864 Sins (Original Mix) Toolbox Digital Shop P 0
125040 Take Me There (Original Mix) Toolbox Digital Shop P 0
124545 Now Or Never (The Punterz Extended Remix) Toolbox Digital Shop P 0
124306 Quantum Realm (Escape The Matrix) (Original Mix) Toolbox Digital Shop P 0
124500 Live For The Weekend (BK Remix) Toolbox Digital Shop P 0
124267 Heart That's Only Yours (Original Mix) Toolbox Digital Shop P 0
123527 Ricky (Extended Mix) Toolbox Digital Shop P 0
123663 Gotta Learn Sometime (Extended Mix) Toolbox Digital Shop P 0
122622 XTC (Extended Mix) Toolbox Digital Shop P 0
121624 Stay Away From Me (Original Mix) Toolbox Digital Shop P 0
120857 Stay (Vinylgroover & Rob IYF Hard Dance Extended Remix) Toolbox Digital Shop P 0
120309 The Dream (Original Mix) Toolbox Digital Shop P 0
120299 On A Roll (Original Mix) Toolbox Digital Shop P 0
119361 Utopia (Original Mix) Toolbox Digital Shop P 0
118451 Take Me Away 2022 ((Extended Mix)) Toolbox Digital Shop P 0
118450 Love Is Just an Energy ((Extended Mix)) Toolbox Digital Shop P 0
118222 Lost In You (Original Mix) Toolbox Digital Shop P 0
117510 Take Me There (Original Mix) Toolbox Digital Shop P 0
117207 The Puzzle (Original Mix) Toolbox Digital Shop P 0
117055 Freed from Desire (Hillfire Extended Mix) Toolbox Digital Shop P 0
116706 Music is the Weapon (Original Mix) Toolbox Digital Shop P 0
116944 My Loving (Original Mix) Toolbox Digital Shop P 0
116153 The Rhythm (Original Mix) Toolbox Digital Shop P 0
115940 Ket Is for Horses 2.0 (Original Mix) Toolbox Digital Shop P 0
114765 Playtime (Extended Mix) Toolbox Digital Shop P 0
114227 Don't Care (Extended Mix) Toolbox Digital Shop P 0
113387 The Path (Original Mix) Toolbox Digital Shop P 0
112100 Impact (Extended Mix) Toolbox Digital Shop P 0