Please provide an apitrace.
But the cpu/gpu usage is barely 5-15%. It is a Unity game.
Your hardware is probably running at idle clock speeds then.
Have same issue this game have low FPS.
Make a apitrace if you can.
Also what is your hardware and driver version.
Hey I created a .trace file. Hope it helps
Game runs at like 350 FPS here, hitting over 400 in the opening sequence.

Again, please make sure it's not a power management issue on your end. I don't see any reason to believe this is a DXVK bug.
(also, the game shows Z being the attack button when in reality it's Y by default, thanks game)
Thank you so much for testing.
It's true it has 100% GPU usage on your end. On mine is barely 4%.
I tried to enable (and disable) the kernel parameters radeon.dpm=1 amdgpu.runpm=1 but no result. Also I checked on corectl that the GPU speed is maximum while playing(2658hz). The issue is GPU usage for some reason.
I wonder if it's an sway/wayland/xwayland thing. I will try with a different desktop environment.
Ok I figured out:
I had to pass DXVK_FILTER_DEVICE_NAME="AMD RADV NAVI22" in order for DXVK to use the right GPU for the game. Now I get 500+ FPS and GPU usage 100%.

Ah yes. Linux and multi GPU setups are a never ending joy 😁
Glad you got it working.
CPU: Ryzen 5950X
GPU: AMD RX 6700
Drivers: Open source
Environment: Sway
The game runs about 70fps at 1080p. But the cpu/gpu usage is barely 5-15%. It is a Unity game.
Some people report 150-200fps on nvidia on max settings.