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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 (
    276607, 276608, 276609, 276610, 276611, 
    276612, 276613, 276614, 276615, 276616, 
    276617, 276618, 276619, 276620, 276621, 
    276622, 276623, 276624, 276625, 276626
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00050

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}