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 (
    958, 957, 956, 955, 954, 953, 952, 951, 
    950, 943, 942, 941, 940, 939, 938, 936, 
    935, 929, 928, 927, 919, 918, 917, 916, 
    915, 517, 516, 515, 469, 468, 434, 433, 
    432, 431, 429, 428, 427, 424, 423, 422, 
    421, 420, 419, 408, 403, 402, 401, 400
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00249

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "1.61"
    },
    "table": {
      "table_name": "cscart_product_review_prepared_data",
      "access_type": "ALL",
      "possible_keys": [
        "PRIMARY"
      ],
      "rows_examined_per_scan": 11,
      "rows_produced_per_join": 11,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "0.51",
        "eval_cost": "1.10",
        "prefix_cost": "1.61",
        "data_read_per_join": "176"
      },
      "used_columns": [
        "product_id",
        "storefront_id",
        "average_rating",
        "reviews_count"
      ],
      "attached_condition": "((`wearethehelpful_scalesta_net`.`cscart_product_review_prepared_data`.`storefront_id` = 0) and (`wearethehelpful_scalesta_net`.`cscart_product_review_prepared_data`.`product_id` in (958,957,956,955,954,953,952,951,950,943,942,941,940,939,938,936,935,929,928,927,919,918,917,916,915,517,516,515,469,468,434,433,432,431,429,428,427,424,423,422,421,420,419,408,403,402,401,400)))"
    }
  }
}