Half of the times it just sits there blank. Sometimes it loads in 2-3 seconds. Rest of the times it loads within 1 sec. Rarely, it also shows a default ad( I wo

Half of the times it just sits there blank. Sometimes it loads in 2-3 seconds. Rest of the times it loads within 1 sec. Rarely, it also shows a default ad( I work in same industry, hence the term). How is that great? PS: Not talking about native ads.