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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 (
    2341, 2342, 2343, 2344, 2345, 2346, 2347, 
    2348, 2421, 2422, 2423, 2424, 2425, 
    2426, 2427, 2428, 2429, 2430, 2431, 
    2432, 2433, 2434, 2435, 2436, 2437, 
    2438, 2519, 2520, 2521, 2522, 2523, 
    2524, 2525, 2526, 2527, 2608, 2609, 
    2610, 2611, 2612, 2613, 2614, 2615, 
    2616, 5872, 5873, 5874, 5875
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00023

JSON explain

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