THERE. ARE. FOUR. LIGHTS.

https://github.com/SnoutBug/BeamNG_terrainMaterialCache
PROTON_USE_WINED3D=1 %command%
PULSE_LATENCY_MSEC=60 WINEDLLOVERRIDES='wbemprox=n;msdmo=n' %command%
sudo sysctl -w vm.max_map_count=524288