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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 (
    6708, 6726, 6725, 3103, 3097, 3113, 6687, 
    6699, 36, 37, 38, 39, 40, 41, 42, 83, 84, 
    85, 86, 87, 88, 89, 147, 148, 149, 150, 
    151, 152, 153, 168, 169, 170, 171, 172, 
    173, 174, 250, 251, 252, 253, 254, 255, 
    256, 304, 305, 306, 307, 308
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00037

JSON explain

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