[Bug 46240] New: Champions of Regnum fps not smooth

https://bugs.winehq.org/show_bug.cgi?id=46240

Bug ID: 46240
           Summary: Champions of Regnum fps not smooth
           Product: Wine
           Version: unspecified
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Hello,

There is randomly but very often fps drop with wine version 3.x.
Version 2.x don't had this problem, always 60fps with vsync turned on.

V3 either drop to 0 every x seconds either (for latest 3.21) drop to around
30fps randomly. Maybe it's related to input lost that put the game in energy
safe mode or something like this, no idea.

CPU is 100% (stats from game alt+i) in V3 compared to 50% or 60% in Wine V2.

Wine and game in 64 bits on a i7 8600k + r9 280x on MacOS

Thanks