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 (
    2527, 2548, 2553, 2554, 1735, 2521, 2547, 
    2520, 2546, 2526, 2528, 2549, 2519, 
    2544, 2522, 2518, 2543, 1736, 2551, 
    2523, 2525, 2550, 1731, 1732, 2531
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00017

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "0.84"
    },
    "table": {
      "table_name": "cscart_product_review_prepared_data",
      "access_type": "ALL",
      "possible_keys": [
        "PRIMARY"
      ],
      "rows_examined_per_scan": 3,
      "rows_produced_per_join": 3,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "0.54",
        "eval_cost": "0.30",
        "prefix_cost": "0.84",
        "data_read_per_join": "48"
      },
      "used_columns": [
        "product_id",
        "storefront_id",
        "average_rating",
        "reviews_count"
      ],
      "attached_condition": "((`cscartdevel`.`cscart_product_review_prepared_data`.`storefront_id` = 0) and (`cscartdevel`.`cscart_product_review_prepared_data`.`product_id` in (2527,2548,2553,2554,1735,2521,2547,2520,2546,2526,2528,2549,2519,2544,2522,2518,2543,1736,2551,2523,2525,2550,1731,1732,2531)))"
    }
  }
}