I'm afraid I'll agree with Justin here. The ROM is by far the worst ROM I have tried on any phone, across Motorola Defy, HTC chacha or S3.
I wish I could give any useful or specific feedback but the fact is that any moment that more than one app is on, the phone just refuses to respond - whether it be titanium backup at work, or play store downloading or skype or multi tasking out of Kindle - the phone would hang and take forever to refresh, including >10 seconds to show the home screen, and another ten to select an app to run. Meanwhile the screen dims and locks itself while you are waiting. Then trying to unlock it further makes it hang.
Thats a shame because the ROM is otherwise really pretty but its incredibly laggy that I would not even bother with diagnosing the problems with it. CM11 official and MIUI are far far better. its another shame that CM10.2 never worked on my phone as did others because of status 7 error.
In terms of settings, I selected the first aggressive multi tasking mod during aroma setup. other than that, nothing was done. Total user apps installed on my phone is ~90