Hm, same here with the Fish Fillets.
When you start grabbing a knob in one of them, the Podium UI freezes, as it does when you move a plug-in window around or a standard Windows menu opens up inside a plug-in. Don’t know if that’s normal behaviour – in any case, it never bothered me. With the Fish Fillets, CPU use goes up drastically also.
The screen shift, however, I only get when the task manager’s open.
No such problems with other plug-ins.