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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 (
    612, 976, 978, 968, 971, 636, 969, 972, 
    977, 1022, 1023, 1106, 1013, 1105, 1101, 
    1104, 979, 989, 632, 613, 617, 621, 622, 
    1015, 1016, 1018, 1019, 611, 980, 1007, 
    1002, 638, 997, 990, 992, 985, 1012, 
    1020
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00029

JSON explain

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