In VR, when fps is low the turning speed using the joysticks/trackpads is also slow.
VRChat 2018.4.3 is now released, which fixes this issue.
This is fixed in VRChat 2018.4.3.
It is thought that a fundamental review of the Input series is necessary.
It is highly likely that the number of times of input judgment is not stable at frame skip.
I need to separate it but I think that futurerequest at new VRChat using Unity 2017 probably helps.
(Naturally, even with a mouse, it is a big problem for AIM that this turn speed becomes unstable during intense shootout)