Question [Q] Performance control in UltimaAOSP 4.4.2

Hello there. This is my first time joining this forum. Alright now back to the question, I been using UltimaAOSP 4.4.2 ROM for quite sometime now. It is really an amazing ROM! There's only one problem, I have no idea how to use the performance control that was built in the ROM. Anyone can help me how use to it and which is the best settings for performance or good battery life? Thanks. . Not to mention that, it's my first time I rooted my phone.