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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 (
    51030, 51032, 51070, 51035, 51059, 51066, 
    51041, 51038, 51023, 51039, 51056, 
    51069, 51040, 51050, 51065, 51036, 
    51037, 51052, 51068, 51009, 51034, 
    51061, 51064, 51055, 51071, 51058
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 1

Query time 0.00033

JSON explain

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