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 (
    951, 950, 949, 948, 947, 946, 945, 944, 
    943, 942, 941, 940, 939, 938, 937, 936, 
    935, 932, 931, 930, 929, 928, 927, 919, 
    918, 917, 517, 516, 515, 478, 477, 476, 
    475, 474, 464, 460, 434, 433, 432, 431, 
    428, 427, 424, 423, 422, 421, 420, 419
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00026

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 (951,950,949,948,947,946,945,944,943,942,941,940,939,938,937,936,935,932,931,930,929,928,927,919,918,917,517,516,515,478,477,476,475,474,464,460,434,433,432,431,428,427,424,423,422,421,420,419)))"
    }
  }
}