This first Diablo 4 game launch runs as it should. Normal. No hiccups. I reach 150 fps (in game option limit). I play for an hour or whatever. All good.
Now… If i exit out of the game. And subsequently launched the game again.
**Did not do any options, settings or config changes, at all.
This time around my fps is stuck between 30-60 fps and game stutters.
This issue or fps lock/drop will stay until i restart the computer. Once the computer is restarted and I launch the game again for the first time, no issues. Fps is back up to 150 like normal.
If not already, use RADV for gaming. Since you are using latest gen amd gpu, you would be shooting yourself in the foot if you’re not using mesa-git (especially on such recent gpu).
Also make sure you use both dxvk-git and vkd3d-proton-git.
It could be that the game is somehow running in background after you closed it. So you’d basically have 2 instances of the game running which is taxing on the system. Check your processes when you start the game for the second time where you get low fps.
Side note, D4 on RADV atm causes gpu hangs on RDNA2. Not sure if it causes them on RDNA3 as well.