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 (
    591, 592, 623, 686, 601, 663, 621, 636, 
    635, 589, 590, 605, 662, 622, 610, 594, 
    597, 596, 606, 608, 611, 631, 628, 618
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00024

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "12.56"
    },
    "table": {
      "table_name": "cscart_product_review_prepared_data",
      "access_type": "ALL",
      "possible_keys": [
        "PRIMARY"
      ],
      "rows_examined_per_scan": 52,
      "rows_produced_per_join": 24,
      "filtered": "46.15",
      "cost_info": {
        "read_cost": "7.77",
        "eval_cost": "4.80",
        "prefix_cost": "12.57",
        "data_read_per_join": "384"
      },
      "used_columns": [
        "product_id",
        "storefront_id",
        "average_rating",
        "reviews_count"
      ],
      "attached_condition": "((`danishecarter_latest`.`cscart_product_review_prepared_data`.`storefront_id` = 0) and (`danishecarter_latest`.`cscart_product_review_prepared_data`.`product_id` in (591,592,623,686,601,663,621,636,635,589,590,605,662,622,610,594,597,596,606,608,611,631,628,618)))"
    }
  }
}