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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 (
    3924, 3925, 3926, 3927, 3928, 3976, 3977, 
    3978, 3979, 3980, 3981, 3982, 4028, 
    4029, 4030, 4031, 4032, 4033, 4034, 
    4035, 4036, 4037, 4038, 4039
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00022

JSON explain

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