I try everthing to stream, but the glitch just work when i stop the stream in OBS

What framerate i put in OBS? I try some things but the elevator is not high enough.

When I do elevator glitch in prison with OBS recording/streaming, it doesn't works. Maybe the OBS was decreasing or losing FPS in game. But when I play without OBS I get this in first try.

How I fix this? The problem is OBS?

(Sorry for my bad english.)

My obs config: http://imgur.com/a/qSS5a http://imgur.com/a/35tbb http://imgur.com/a/HFb9t

OBS cpu usage too high. How i reduce it?