There’s a couple profiles on the cloud already you can import.
The profile I started with was from Grounded (another Unreal Engine 4 dx12 game) and it worked right away. Z3D. Remember no G3D for dx12 games.
This game eats ram hard and seems to have problems with stutters or load crashes if you don’t have enough. For me it uses 22gb ram + 10gb vram of my 11gb 2080ti. So if you have less than that, you might struggle to even launch this game.
I use vorpX in openXR mode and run the game in a window 3200×1800 with dlss quality on.