[Bug 49808] New: Regression in wine 4.0-rc1 cause Stellaris loads very slow, long time black screen

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49808

Bug ID: 49808
           Summary: Regression in wine 4.0-rc1 cause Stellaris loads very
                    slow, long time black screen
           Product: Wine
           Version: 4.0-rc1
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Stellaris on the recent wine version loads very slowly and the black screen
takes a long time.

Tested many wine versions:

# 3.2                       game loads very fast
# 3.11                      game loads very fast
# 3.20-staging              game loads very fast
# 3.21                      game loads very fast
# 4.0-rc1 (for fedora28)    game loads very slow, long time black screen
# 4.0-rc1 (for fedora29)    game loads very slow, long time black screen
# 4.1                       game loads very slow, long time black screen
# 4.6                       game loads very slow, long time black screen

Regression in 4.0-rc1 may affect many PDS Clausewitz engine games. Could it
affect many games that load a lot of loose files?

CPU:       Intel Xeon E3-1275L v3
Memory:    8GiB
VGA:       nVidia GeForce GTX 750 Ti
Distro:    Fedora 32
kernel:    5.8.6-201.fc32.x86_64