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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 (
    51007, 51004, 51005, 51010, 51012, 51013, 
    51011, 51015, 51006, 51021, 51016, 
    51024, 51017, 51019, 51018, 51022, 
    51014, 51045, 51025, 51029, 51027, 
    51020, 51028, 51031, 51042, 51030, 
    51032, 51033, 51026, 51035, 51038, 
    51023
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 1

Query time 0.00021

JSON explain

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