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 (
    360, 361, 362, 363, 364, 365, 366, 367, 
    368, 369, 370, 379, 380, 381, 382, 383, 
    384, 385, 386, 387, 388, 389, 390, 391, 
    392, 393, 394, 395, 396, 397, 398, 399
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00043

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "16.63"
    },
    "table": {
      "table_name": "cscart_product_review_prepared_data",
      "access_type": "ALL",
      "possible_keys": [
        "PRIMARY"
      ],
      "rows_examined_per_scan": 72,
      "rows_produced_per_join": 32,
      "filtered": "44.44",
      "cost_info": {
        "read_cost": "10.23",
        "eval_cost": "6.40",
        "prefix_cost": "16.63",
        "data_read_per_join": "512"
      },
      "used_columns": [
        "product_id",
        "storefront_id",
        "average_rating",
        "reviews_count"
      ],
      "attached_condition": "((`pankajecarter_systemfour`.`cscart_product_review_prepared_data`.`storefront_id` = 0) and (`pankajecarter_systemfour`.`cscart_product_review_prepared_data`.`product_id` in (360,361,362,363,364,365,366,367,368,369,370,379,380,381,382,383,384,385,386,387,388,389,390,391,392,393,394,395,396,397,398,399)))"
    }
  }
}