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 (
    520, 521, 522, 523, 524, 525, 526, 527, 
    528, 529, 530, 531, 532, 533, 534, 535, 
    536, 537, 538, 539, 540, 541, 542, 543, 
    544, 545, 546, 547, 548, 549, 550, 551, 
    552, 553, 554, 555, 556, 557, 558, 559, 
    560, 561, 562, 563, 564, 565, 566, 567, 
    587, 585, 583, 586, 584, 519
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00040

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": 52,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "2.17",
        "eval_cost": "10.40",
        "prefix_cost": "12.57",
        "data_read_per_join": "832"
      },
      "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 (520,521,522,523,524,525,526,527,528,529,530,531,532,533,534,535,536,537,538,539,540,541,542,543,544,545,546,547,548,549,550,551,552,553,554,555,556,557,558,559,560,561,562,563,564,565,566,567,587,585,583,586,584,519)))"
    }
  }
}