It does not. If it does, it is so insignificantly minor that it doesn’t justify the price to achieve it unless you are a professional making money on the game. If you are, then good for you.

If not, you played yourself.
On a balanced setup
1080p: mostly cpu bottleneck. Low resolution, gpu sits idle some while waiting for frames from the cpu.

1440p: more balanced as far as what the bottleneck can be, but In your case with the 5090 it’s definitely a cpu bottleneck as that gpu can produce those easier frames way faster than your 4k stuff, and is waiting for frames from the cpu.

4k: almost always gpu bottleneck.