[Bug 57806] New: visual and response lags in Guitar Pro v8.1.3 (build 121)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57806

Bug ID: 57806
           Summary: visual and response lags in Guitar Pro v8.1.3 (build
                    121)
           Product: Wine
           Version: 9.22
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 78013
  --> https://bugs.winehq.org/attachment.cgi?id=78013
Guitar Pro in Wine-9.20

I've been using Wine-staging for running Guitar Pro on Linux (Gentoo, then
NixOS), and it's been smooth until 9.20 -> 9.22 update
(https://github.com/NixOS/nixpkgs/pull/359908, nixpkgs maintainers skipped
v9.21). Then visual lags (constant, as if the program runs at 5 FPS) started to
happen. Welp, they aren't solely visual, responsiveness also suffers. Audio,
however, doesn't lag and is still smooth.

The lag is also present on Wine10.

Regression also confirmed on Wine-development v9.22 and with a demo version of
the program and on different PCs (first on an Intel-based laptop (Core
i3-7100), then on an AMD-based one (AMD Ryzen 5 5500U)), both with integrated
GPUs.

Camera recording (not screen capture, because `simplescreenrecorder` (haven't
tried other tools) for some reason reduced these lags): https://0x0.st/8KNw.mp4

Logs are attached below.