SELECT 
  product_id, 
  feature_short_desc 
FROM 
  cscart_ab__short_desc_from_features_values 
WHERE 
  product_id IN (
    18365, 18366, 18367, 18368, 18369, 18370, 
    18371, 18372, 18373, 18374, 18375, 
    18376, 18377, 18378, 18379, 18380
  ) 
  AND lang_code = 'ru' 
  AND storefront_id = 1

Query time 0.00028

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_ab__short_desc_from_features_values",
      "access_type": "range",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "9",
      "used_key_parts": ["product_id", "lang_code"],
      "rows": 32,
      "filtered": 100,
      "attached_condition": "cscart_ab__short_desc_from_features_values.storefront_id = 1 and cscart_ab__short_desc_from_features_values.product_id in (18365,18366,18367,18368,18369,18370,18371,18372,18373,18374,18375,18376,18377,18378,18379,18380) and cscart_ab__short_desc_from_features_values.lang_code = 'ru'"
    }
  }
}