Hello @vinifmor, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/183#issuecomment-553215059.
proton 4.11-7x1 2019-11PROTON_NO_D3D11=1x1 2019-11PROTON_USE_D9VK=1x1 2019-11
Compatibility Report
System Information
I confirm:
Symptoms
The game was working properly with Proton 4.11-7 using D9VK or DXVK (DX10 using d3dcompiler_43). In 4.11-8 the main screen becomes very slow (almost frozen) and it seems the mouse does not work ( the screen ask to press any key to continue, but the mouse / keyboard input seems not to be recognized). It becomes impossible to play the game.
Reproduction