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 (
    167, 169, 42, 39, 40, 205, 37, 74, 73, 71, 
    75, 72, 70, 156, 175, 43, 76, 56, 57, 30, 
    246, 208, 173, 229, 211, 210, 209, 67, 
    25, 213, 215, 226
  ) 
  AND cscart_product_review_prepared_data.storefront_id = 0

Query time 0.00033

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_product_review_prepared_data",
      "access_type": "ALL",
      "possible_keys": ["PRIMARY"],
      "rows": 52,
      "filtered": 61.53845978,
      "attached_condition": "cscart_product_review_prepared_data.storefront_id = 0 and cscart_product_review_prepared_data.product_id in (167,169,42,39,40,205,37,74,73,71,75,72,70,156,175,43,76,56,57,30,246,208,173,229,211,210,209,67,25,213,215,226)"
    }
  }
}

Result

product_id average_rating reviews_count
167 5.00 1
246 5.00 3