Performance with 9800X3D / 4080 / 32GBDDR5

Hello, I bought marathon and I really like this game. It is really special. I played server slam and it ran beautifully smoothly even with DLAA. Just buttery smooth. Now the full game runs quite badly. I also tried to do a clean install of Windows 11 but it didn't help. I have lasest Nvidia drivers. The game stutters in outdoor areas, inside is ok. My build is 9800X3D + RTX4080 + 32GB@7200MHz and I play in 1440p. I think this is a high-end build and that especially with DLSS Quality the game must run at least as well as in Server Slam.

Could you please take a look at it?

Alternatively, I can send you the logs.

Thank you

Tomas