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SELECT 
  cscart_product_review_prepared_data.product_id AS product_id, 
  cscart_product_review_prepared_data.average_rating AS average_rating, 
  cscart_product_review_prepared_data.reviews_count AS reviews_count 
FROM 
  cscart_product_review_prepared_data 
WHERE 
  cscart_product_review_prepared_data.product_id IN (
    1776, 1785, 1633, 1563, 1564, 1667, 1786, 
    1945, 1910, 1787, 1308, 1642, 1772, 
    1736, 1277, 1672, 1325, 1665, 1778, 
    1775, 1671, 1649, 1909, 1948
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00045

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}