[Bug 21165] New: Borderlands is ~3x slower under Wine (GeForce Go 7900 GS).

http://bugs.winehq.org/show_bug.cgi?id=21165

Summary: Borderlands is ~3x slower under Wine (GeForce Go 7900
                    GS).
           Product: Wine
           Version: unspecified
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: directx-d3d
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Borderlands runs about three times slower under Wine than under Windows (from
30+FPS to 10FPS). This is with all settings as low as they go. Wine prints no
output during execution. My graphics card is a GeForce Go 7900 GS, in a 1.6x2
Core2 T5500 laptop. Both Windows and Linux use the nVidia beta driver (v190).
Wine version is Git head (1.1.35+). Graphics are identical, except that Z
ordering of light decals seems broken (this may be linked to slowdowns).
Adaptive clocking correctly switches to full-speed mode; Speedstep is off. perf
record/report lists the following distribution: 40% in libGLcore.so, 30% in
Borderlands.exe itself, 12% in the kernel, 5% in wineserver, 4% in ntdll, 3% in
libc, 2% in wined3d (the rest is negligible).

Any ideas?