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 (
    2155, 2156, 2157, 2158, 2159, 2160, 2161, 
    2162, 2163, 2164, 2165, 2166, 2167, 
    2168, 2169, 2170, 2171, 2172, 2173, 
    2174, 2175, 2176, 2177, 2178, 2179, 
    2180, 2181, 2182, 2183, 2184, 3779, 
    3780, 3781, 3782, 3783, 3784, 3785, 
    3786, 3787, 3788, 3789, 3790, 3791, 
    3792, 3793, 3794, 3795, 3796
  ) 
  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 0.00024

JSON explain

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