Poor Performance on PC

Hello, 

I have been enjoying FC26 early access on PC. The picture are the settings that give me the most consistent/stable FPS while in game. In addition for more context, my graphical settings are all on LOW.

Why do i get connection issues when I use any other settings online and are these the only settings that can give me a consistent framerate while playing online matches?

PC specs:

i9-12900k

RTX5090

32GB RAM

1TB SSD