Consider Nape Physics instead of Box2D

http://napephys.com/help/manual.html

To keep a long story short, we vetted this early on in 3.0's development and found that the mobile performance was inexplicably poor, even though it showed promising performance on Flash/desktop.

http://napephys.com/help/manual.html

Hi, is it still the case? When I watch some youtube video of using Nape Physics, I just think it's crazy fast, while when using Box2D actors we have to watch out not to use too many.

https://www.youtube.com/watch?v=G9YfNYIIly8