SELECT 
  cscart_ult_product_prices.product_id, 
  MIN(
    IF(
      cscart_ult_product_prices.percentage_discount = 0, 
      cscart_ult_product_prices.price, 
      cscart_ult_product_prices.price - (
        cscart_ult_product_prices.price * cscart_ult_product_prices.percentage_discount
      )/ 100
    )
  ) AS price 
FROM 
  cscart_ult_product_prices 
WHERE 
  cscart_ult_product_prices.product_id IN (
    5592, 5593, 5594, 5595, 5596, 5597, 5598, 
    5599, 5600, 5601, 5602, 5603, 5604, 
    5605, 5606, 5607, 5608, 5609, 5610, 
    5611, 5612, 1423, 1424, 1425, 1426, 
    1427, 5136, 5137, 5138, 5139, 5140, 
    5141, 6711, 1455, 5164, 1445, 5154, 
    1456, 5165, 1446, 5155, 1458, 5167, 
    1448, 5157, 1459, 5168, 5158
  ) 
  AND cscart_ult_product_prices.lower_limit = 1 
  AND cscart_ult_product_prices.company_id = 1 
  AND cscart_ult_product_prices.usergroup_id IN (0, 0, 1) 
GROUP BY 
  cscart_ult_product_prices.product_id

Query time 0.00026

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}