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 (
    65396, 65399, 65457, 65395, 65459, 65482, 
    65387, 65410, 65418, 65388, 65403, 
    65404, 65406, 65407, 65409, 65411, 
    65412, 65413, 65414, 65415, 65417, 
    65433, 65464, 66147
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00030

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "12.95"
    },
    "table": {
      "table_name": "cscart_product_review_prepared_data",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "product_id",
        "storefront_id"
      ],
      "key_length": "7",
      "rows_examined_per_scan": 24,
      "rows_produced_per_join": 24,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "10.55",
        "eval_cost": "2.40",
        "prefix_cost": "12.95",
        "data_read_per_join": "384"
      },
      "used_columns": [
        "product_id",
        "storefront_id",
        "average_rating",
        "reviews_count"
      ],
      "attached_condition": "((`cscart_db`.`cscart_product_review_prepared_data`.`storefront_id` = 0) and (`cscart_db`.`cscart_product_review_prepared_data`.`product_id` in (65396,65399,65457,65395,65459,65482,65387,65410,65418,65388,65403,65404,65406,65407,65409,65411,65412,65413,65414,65415,65417,65433,65464,66147)))"
    }
  }
}