I have some tweaks you can try.

In your video cards control panel, make sure you have Threaded Optimization Enabled. I believe the Unity Engine takes advantage of this option.


Then ight click on Valheim in your Steam library and go to 'Manage' and then 'Browse local files.'

That should bring up a window of Valheim's game files. Click on the valheim_Data folder.

Find the file named 'boot' or 'boot.config' and open it with Notepad.

Add "gfx-enable-gfx-jobs=1" as a separate line at the very top.

Add "gfx-enable-native-gfx-jobs=1" right below the first line.


So the file should look like this.

gfx-enable-gfx-jobs=1
gfx-enable-native-gfx-jobs=1
wait-for-native-debugger=0
vr-enabled=0
hdr-display-enabled=0
gc-max-time-slice=3

Then save it.

You can also add "gfx-disable-mt-rendering=0" to the file. Unity should have this set by default, but just to make sure you can add that command to make sure Multi Threaded Rendering is enabled.

I had a pretty substantial performance increase from doing this.