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 (
    9594, 9608, 9617, 9652, 9661, 9672, 9673, 
    9687, 9690, 9700, 9702, 9738, 9740, 
    9758, 9765, 9796, 9806, 9815, 9824, 
    9851, 9853, 9856, 9861, 9887
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00054

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.00"
    },
    "table": {
      "table_name": "cscart_product_review_prepared_data",
      "access_type": "ALL",
      "possible_keys": [
        "PRIMARY"
      ],
      "rows_examined_per_scan": 5,
      "rows_produced_per_join": 5,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "0.50",
        "eval_cost": "0.50",
        "prefix_cost": "1.00",
        "data_read_per_join": "80"
      },
      "used_columns": [
        "product_id",
        "storefront_id",
        "average_rating",
        "reviews_count"
      ],
      "attached_condition": "((`softwarepirmam_hewadelivard_cscart_4`.`cscart_product_review_prepared_data`.`storefront_id` = 0) and (`softwarepirmam_hewadelivard_cscart_4`.`cscart_product_review_prepared_data`.`product_id` in (9594,9608,9617,9652,9661,9672,9673,9687,9690,9700,9702,9738,9740,9758,9765,9796,9806,9815,9824,9851,9853,9856,9861,9887)))"
    }
  }
}