Sandbox

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 (
    663, 664, 665, 666, 667, 668, 669, 670, 
    671, 672, 673, 674, 675, 676, 677, 678, 
    679, 680, 681, 682, 683, 684, 685, 686
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00046

JSON explain

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