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 (
    288, 13481, 13466, 13488, 13474, 13486, 
    13468, 13469, 13485, 35390, 13487, 
    38238, 287, 31800, 286, 535, 40404, 
    32880
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00049

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "5.87"
    },
    "table": {
      "table_name": "cscart_product_review_prepared_data",
      "access_type": "ALL",
      "possible_keys": [
        "PRIMARY"
      ],
      "rows_examined_per_scan": 19,
      "rows_produced_per_join": 18,
      "filtered": "94.74",
      "cost_info": {
        "read_cost": "2.27",
        "eval_cost": "3.60",
        "prefix_cost": "5.87",
        "data_read_per_join": "288"
      },
      "used_columns": [
        "product_id",
        "storefront_id",
        "average_rating",
        "reviews_count"
      ],
      "attached_condition": "((`webmarco`.`cscart_product_review_prepared_data`.`storefront_id` = 0) and (`webmarco`.`cscart_product_review_prepared_data`.`product_id` in (288,13481,13466,13488,13474,13486,13468,13469,13485,35390,13487,38238,287,31800,286,535,40404,32880)))"
    }
  }
}