Nate EP Neigdoig both your issues will probably be fixed if you use Wine 10.0. Make sure your mouse polling rate is below 1000 Hz and lock the FPS to 200 if you have a powerful system. If you can't reach 200FPS then lock the FPS so that you have a stable FPS otherwise your sensitivity will do parkour. Don't use MangoHud.
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Neigdoig
@Neigdoig