GUI FPS loss issue with Geforce 9800 GX2, similiar to Sins

Win Vista 32
4 GB RAM
Geforce 9800 GX2
AMD 5200+

Everytime i open the Demigod Profile the FPS drops, the game studders a bit. Other than that no FPS or lag issues.
In the Profile if i mouse over any objects i own, i hear the click sound multiple times and the infobox flashes a bit.
Maybe the FPS drops because it loops the click sound, just a guess.

Similiar FPS loss issues i noticed in Sins a few weeks ago. 

Graphic drivers are up to date.