cl_cmdrate makes you fly?

For some reason if you were to set your cl_cmdrate to 1000, you could fly. Does anyone know a fix to this? This command works on servers to and i wouldnt be fair to players on my server if they were to use that command. I host a ttt server with pointshop jetpack, I dont know if the jetpack is causing that problem

It’s the jetpack addon for sure. It doesn’t happen for me.