Entering new events is quite slow (after I click OK to save an event), it takes 3-5 seconds for the New event window to close.

I recently switched to a new computer, the old one was on fedora and KOrganizer wasn't slow. I'm now on ubuntu and I probably got a new KOrganizer version with it because I see some new features (Time zones) and a new theme too, not sure if that matters.

Is adding new events slow because of the new Time zones feature? Is there a way to fix it?