https://bugs.winehq.org/show_bug.cgi?id=47158
--- Comment #5 from David Kahurani k.kahurani@gmail.com --- I'm obviously not sure about this but I mostly suspect these performance issues to be rooted in some other library implementation.
As is, there is little or no algorithms in gdiplus, and consequently, little to optimize. It mostly wraps around other libraries and system API.