I think for this kind of UI the transitions shouldn't be so fast because the idea is not loose context. However, I would add a property to ZircleUI to set the speed the developer feel more confortable.
I too feel like I'm waiting forever for it to "get there". The other thing I don't care for is that it takes 2 steps to go change the language...
This is solved in this app by repeating the language switcher under the top list, but then repeating content starts to break the "Where am I" question.