http://bugs.winehq.org/show_bug.cgi?id=6358
Summary: Resizing windows is slow in PITy Product: Wine Version: 0.9.22. Platform: PC OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: wine-directx-ddraw AssignedTo: wine-bugs@winehq.org ReportedBy: karaluh@tlen.pl
It looks like the window is resized by one pixel and all the content of the window is drawn, then again resized by one pixel and all content drawn and so on till it reaches destination size. To see this you have to size the window down by holding the corner of the window and then size it up back. The application can be found here: http://www.ips-infor.com.pl/sms/index_pity2005.php (it's freeware).