Powertools decky plugin: 4 Threads, default frequency limits on a cpu(I likely forgot to adjust those); GPU: 400-400 MHz(I play with SSAA x8, x4 might be sufficient). I would say play around with the TDP setting(maybe the gpu will run at ?200mhz without the minimum clock set to 400?), play around with cpu frequency limits. I'm also not really sure if doing 400MHz on memory(in actuality: 400MHz -> 3200MT/s, 1600MHz vs 667MHz -> 5500MT/s 2250MHz). Undervolted steam deck(-10/-50/-50).

Sometimes audio blasts at an elevated volume.

When restarting the race continously/waking the device from sleep the engine sound might go missing. Going back to the game menu and back to the race might help.

The official control scheme doesn't work, because the game doesn't detect the controller. I also don't mind using the sticks for acceleration/deacceleration like the default control scheme sets them, but if they don't use triggers, they should have been seperated at the very least.

Random audio blasting/eardrum piercing as said before. Usually happens once per game-session, it could be my steam deck's undervolt settings -10/-50/-50 mv.