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 (
    1770, 1771, 1772, 1773, 1774, 1775, 1776, 
    1777, 1778, 1779, 1780, 1781, 1782, 
    1783, 1784, 1785, 1786, 1787, 1788, 
    1789, 1790, 1791, 1792, 1793, 1794, 
    1795, 1796, 1797, 1798, 1799, 1800, 
    1801, 1802, 1803, 1804, 1805, 1806, 
    1807, 1808, 1809, 1810, 1811, 1812, 
    1813, 1814, 1815, 1816, 1817
  ) 
  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"
  }
}