Due to a workaround for an old custom cursor bug (4196958), performance
across all platforms of windows is not what it should be. When the
user has custom cursors enabled (which happens by having a non-default
Pointer Scheme selected in the Mouse control panel settings), java
punts a lot of functionality to GDI instead of DirectDraw. This means
that operations which could be hardware accelerated are not
being accelerated, at the cost of significant performance for the end-user.