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 (
    51567, 51565, 53, 21, 48, 49, 92, 37, 41, 
    38, 39, 40, 130, 128, 50984, 134, 50985, 
    50986, 50988
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 1

Query time 0.00032

JSON explain

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