Well that could be nice. But I think it is that fast because it doesn't have much load yet. But when investors would be going for it I think it will be just like bitcoins. The complexity of the calculations depends on how much coins are used. The greater the coin's volume used the longer it takes to process transactions. With respect to popularity I think bitcoin got the upper hand and thus will still be preferred. But will just wait and see if waves can be on top.