http://bugs.winehq.org/show_bug.cgi?id=28894
--- Comment #3 from Reinhard Karcher reinhard.karcher@gmx.net 2011-10-26 03:02:16 CDT --- I suspect, that the problem is where you are looking for line breaks. The program has about 10 windows, some with long lines and some without. The windows without long lines are displayed without any delay, the other have a delay that depends on the number of line breaks.
Reinhard