Ignore r_maxfps if V-Sync is enabled. This will reduce power usage of the CPU. Without this check, if the monitor's frequency is 144Hz and the FPS is limited to 144FPS, my CPU consumes 30 watts, with this 'if' added, it consumes only 10-15 watts. If r_maxfps is less than or equals to the monitor's refresh rate, this happens. Limiting the FPS when V-Sync is enabled doesn't make sense anyway.