I'm pretty sure the video plugin zzogl PG 0.1.0 works better for the ff series. Get it from the pcsx2 mac downloads page. That should fix any graphics problem.
13" MacBook Pro (March 2011) Display: 1280x800 CPU: Intel Core i5 2.3 GHz w/ 2.9 GHz Turbo Boost Memory: 4 GB 1333 MHz DDR3 Graphics: Intel HD Graphics 3000 384 MB Software: Mac OS X Lion 10.7.3