What bitrate do you suggest for 2560x1440?

[MonsterMMORPG]

I have RTX 3060 so even in 120k bit rate it doesn't use any resources.

However the output size becomes too high.

For 2560x1440 pixel what optimal bitrate do you suggest?
and also for 3840x2160 what optimal bitrate do you suggest?
What audio bitrate do you suggest?

I am recording in 60 FPS

Also here my settings are they correct?

 

[Harold]

You should not be using a bitrate number based rate control like cbr or vbr for recording. Use CQP rate control with a CQP level of 14.
Adjust your preset to a "faster" one, as the encoder would then adjust bitrate to make up the picture quality.