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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 (
    5680, 5681, 5682, 5683, 5684, 5685, 5686, 
    5687, 5688, 5689, 5690, 5691, 5692, 
    5693, 5694, 5695, 5696, 5697, 5698, 
    5699, 5700, 5701, 5702, 5703, 5704, 
    5705, 5706, 5707, 5708, 5709, 5710, 
    5711, 5712, 5713, 5714, 5715, 5716, 
    5717, 5718, 5719, 5720, 5721, 1479, 
    1480, 1481, 1482, 1483, 5188, 5189, 
    5190, 5191, 5192, 5193, 1467, 1468, 
    1469, 1470, 1471, 5176, 5177, 5178, 
    5179, 5180, 5181, 447, 448, 449, 450, 
    451, 452, 453, 454, 455, 1932, 1933, 
    1934, 1935, 1936, 1937, 1938, 1939, 
    1940, 1941, 1942, 1943, 1944, 1945, 
    1946, 1947, 1948, 1949, 1950, 1951, 
    1952, 1953, 1954
  ) 
  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"
  }
}