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 (
    312881, 312873, 312841, 312842, 312847, 
    312848, 312840, 312846, 312838, 312839, 
    312854, 312876, 312843, 312845, 312837, 
    312855, 312834, 312864, 312852, 312853, 
    312851, 312866, 312844, 312867
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00019

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.0198198,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_product_review_prepared_data",
          "access_type": "ALL",
          "possible_keys": ["PRIMARY"],
          "loops": 1,
          "rows": 55,
          "cost": 0.0198198,
          "filtered": 43.63636398,
          "attached_condition": "cscart_product_review_prepared_data.storefront_id = 0 and cscart_product_review_prepared_data.product_id in (312881,312873,312841,312842,312847,312848,312840,312846,312838,312839,312854,312876,312843,312845,312837,312855,312834,312864,312852,312853,312851,312866,312844,312867)"
        }
      }
    ]
  }
}