I use the MahApps-Design in WPF-DLL. One Control of this DLL ist used in a Windows-Forms application within a HostElement control. After more times creating an object of this control, opening a window ...

We believe we have discovered a bottleneck (bug?) in WPF that causes extremely poor performance under some circumstances. For us, styles coming from MahApps are the primary culprits in triggering the ...