Diablo 3 recommended settings?

[edtorious]

Hello, below is my specs from my iMac and I'm trying to figure out the best settings for Diablo 3, I have them all on High except forgive my ignorance what does the foreground FPS and the other FPS do? If I raise the numbers will I get better result? What is the best numbers for those FPS based on my specs. Any help or suggestions will be greatly appreciated. Thank you.

My System Specifications

Operating System: MacOS 10.7.4
CPU Type: Intel® Core™ i5 CPU 760 @ 2.80GHz
CPU Speed: 2.82 GHz
System Memory: 16 GB
Video Card Model: ATI Radeon HD 5750
Video Card Memory: 1 GB
Desktop Resolution: 2560x1440

 

[Cougarcat]

Just keep them at the default. Foreground is the max FPS in-game; you'll never hit it. The background is the mac FPS when you are tabbed out of the game, which will prevent slowdowns when you're doing something else but leaving the game running.