Thanks for notifying me about the FPS limiter bug. I wasn't aware of that until now. I'll be sure to address that in the next build.
On to the gameplay feedback, I'm happy to say that most of them has actually been addressed. Not necessarily polished features or anything, but they are there for now.
As for Joystick support, I am currently in the R&D phase of that so I hope I can figure it out in time to implement it.
As for headtrack support I have yet to dive into that one. I'll certainly let you know if I need testers for headtracking.