   PhysX NET. Controllers make my program running slow
  Hello!I've attached PhysX to my XNA-project using this (http://physxdotnet.codeplex.com/Wiki/View.aspx) wrapper.I have a simple scene containing a terrain and a hundred of falling boxes. It runs pretty fast (fixed 60 FPS).Then I want to add a user-controlled character to the scene. I'm doing it by the native nVidia sample from the PhysX SDK (Sample - Character controller). I haven't event done the response to the collisions yet, but my scene already runs very slow. It's about 2-7 FPS now.So, please, help me to figure out, why controllers slow down my program so much? How should I solve this problem?Thanks ahead of time.   