http://bugs.winehq.org/show_bug.cgi?id=11602
Summary: Planetside preformance issues at high population / complex scenes. Product: WineHQ Bugzilla Version: unspecified Platform: All OS/Version: All Status: UNCONFIRMED Severity: normal Priority: P2 Component: bugzilla-unknown AssignedTo: wine-bugs@winehq.org ReportedBy: ellis@ellisdesign.org
I think this is true for most D3D games and applications. While rendering complex scenes performance drops quite bad.