[quiet]

Also, add this line to the end of your custom.cfg

seta r_displayrefresh ##

## = the refresh rate of your monitor.

For instance I run mine at 85 on my desktop so I have the command:

seta r_displayrefresh 85

This should remove any flicker effects if you get any of those.

And, if you want to get the most out of your FPS, especially with vsync off, I recommend pushing your FPS to the max.

Put the following line in your custom.cfg:

seta com_maxfps 120

The default is 85 but this should give the most out of your potential FPS.

Have fun!