http://bugs.winehq.org/show_bug.cgi?id=24044
--- Comment #11 from Artem S. Tashkinov t.artem@mailcity.com 2010-08-20 08:16:41 --- And BTW this problem mostly concerns only a custom plugin by SSS: http://sss.chaoslab.ru:81/tracker/icqjplus/
I've now reverted to a default ICQ plugin and CPU usage has vastly improved (was ~8%, now 2%).