Jason found that the issue is related to the redecoration compiz call in unity which is expensive. The same issue if affecting alt + tab in compiz btw. (the more you have maximized window, that is to say, undecorated one, the more time you will spend).
Jason found that the issue is related to the redecoration compiz call in unity which is expensive. The same issue if affecting alt + tab in compiz btw. (the more you have maximized window, that is to say, undecorated one, the more time you will spend).