Board Thread:Questions and Answers/@comment-25135162-20150606133555/@comment-10204530-20150606141354

For cursor problems, I usually try alt-tabbing out the window and back in.

Keyboard delay would usually be some sort of CPU/GPU processing problemthing maybe (my laptop somehow screwed up and apparently there was some sort of overload caused by Roblox), it's usually lag.

Stuck camera is, well, most likely Roblox's fault. I've had it before on Strife!, but exiting the window and joining the game again can fix it.

Though, this is only from my experience and unless you mean you're having the three listed problems all at one time, then I have no idea.