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 (
    1341, 1342, 1856, 2913, 1815, 1819, 2914, 
    1859, 1858, 1850, 1294, 1298, 1297, 
    1293, 1295, 1814, 1816, 1817, 1818, 
    1820, 1821, 1822, 1823, 1824
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00021

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost": 0.0149298,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_product_review_prepared_data",
          "access_type": "ALL",
          "possible_keys": ["PRIMARY"],
          "loops": 1,
          "rows": 25,
          "cost": 0.0149298,
          "filtered": 96,
          "attached_condition": "cscart_product_review_prepared_data.storefront_id = 0 and cscart_product_review_prepared_data.product_id in (1341,1342,1856,2913,1815,1819,2914,1859,1858,1850,1294,1298,1297,1293,1295,1814,1816,1817,1818,1820,1821,1822,1823,1824)"
        }
      }
    ]
  }
}