>>327920209
>>327927510
Found it!

Right click the game in you library and select properties. Add the following to launch options.

-console -vconsole +vr_fidelity_level_auto 1 +vr_msaa 0 +vr_fidelity_level 3

If you want you can remove "+vr_msaa 0" but if you are able to super sample then you don't need it.