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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 (
    276687, 276688, 276689, 276690, 276691, 
    276692, 276693, 276694, 276695, 276696, 
    276697, 276698, 276699, 276700, 276701, 
    276702, 276703, 276704, 276705, 276706
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00034

JSON explain

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