Update: Issues persist with Proton 3.16-5, however, the audio is much clearer.
Update: Issues persist with Proton 3.16-7.
Update: Issues persist with Proton 3.16-8.
Update: Issues persist with Proton 4.2-7
Also, here's an updated system info: Gist
And an updated game log: steam-758930.log
Oh, and this game uses Adobe AIR, if that helps in any way.
proton 4.2-7x1 2019-06proton 3.16-8x1 2019-03proton 3.16-7x1 2019-03proton 3.16-5x1 2018-12
Compatibility Report
System Information
I confirm:
steam-758930.log
Symptoms
Game has slightly static-y sound, and noticeable input lag, both in-game and in-menu.
In-game, immense lag is immediately noticeable, making game unplayable.
As an aside, I have tried disabling Esync, Using WineD3D, and disabling D3D11. None improved performance.
Reproduction