[Bug 47066] New: Regression: extremely low FPS in osu! on wine 4.6, unplayable

https://bugs.winehq.org/show_bug.cgi?id=47066

Bug ID: 47066
           Summary: Regression: extremely low FPS in osu! on wine 4.6,
                    unplayable
           Product: Wine
           Version: 4.6
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 64243
  --> https://bugs.winehq.org/attachment.cgi?id=64243
debug log for wine 4.6, broken

After an update to wine 4.6 osu! stopped working properly.

Video: https://streamable.com/hy02f

Differences from wine 4.5:
1. A screen of glitched framebuffer right before the game starts up (doesn't
happen on wine 4.5).
2. Extremely low FPS, something like one frame every two seconds.

Logs for wine 4.5 and 4.6 for starting the game and quitting attached.