Game Problem: zelda twilight princess running really slow on mac book pro 2011 edition.

I am playing zelda twilight princess on my mac book pro 2011 edition through dolphin but the game is really slow. What can i do to make it perfect thank you for reading. Also here are my specs: Processor 2.3 GHz Intel Core i5, Memory 4 GB 1333 MHz DDr3, Graphics Intel HD Graphics 3000 384 MB, Software Mac OSX Lion 10.7.3. Thank you for reading.

I'm not 100% here but the i5 is dual core right? Make sure you have that option set. Also check the speed guide on the dolphin site. Also make sure you have the latest revision and check game compatibility.