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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 (
    373, 374, 375, 376, 377, 378, 379, 380, 
    381, 382, 383, 384, 385, 386, 387, 388, 
    389, 390, 391, 392, 393, 394, 395, 396
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00049

JSON explain

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