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 (
    195, 199, 198, 94, 96, 201, 192, 136, 191, 
    90, 196, 252, 95, 197, 251, 200, 84, 85, 
    88, 47, 253, 138, 93, 87, 139, 83, 204, 
    256, 137, 248, 108, 97
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00045

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_product_review_prepared_data",
          "access_type": "ALL",
          "possible_keys": ["PRIMARY"],
          "rows": 142,
          "filtered": 22.53521156,
          "attached_condition": "cscart_product_review_prepared_data.storefront_id = 0 and cscart_product_review_prepared_data.product_id in (195,199,198,94,96,201,192,136,191,90,196,252,95,197,251,200,84,85,88,47,253,138,93,87,139,83,204,256,137,248,108,97)"
        }
      }
    ]
  }
}