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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 (
    51020, 51423, 51067, 51063, 51435, 51031, 
    51062, 51026, 51028, 51431, 51441, 
    51425, 51030, 51033, 51035, 51432, 
    51041, 51042, 51434, 51032, 51070, 
    51037, 51038, 51052, 51059, 51023, 
    51061, 51064, 51069, 51040, 51050, 
    51066
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 1

Query time 0.00027

JSON explain

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