is the fastest ROM I've tried, by far.
It is a clean ROM concentrated on improving performance, it doesn't add a lot of features which also can be added afterwards to your taste (for instance if you want a PIE menu you can add LMT Launcher). But you can select extended desktop (full screen), you can customize the navbar buttons and settings, nav ring, status bar, and quick settings (swipe down from the top right of the status bar).
If you use this rom with its standard kernel, make sure to install Trickster MOD
and adjust the setting 'CPUQuit Power Management' to 'RUNNABLE' (swipe to the last tab, and don't forget to press 'V' on top of the screen to activate, and enable 'set on boot'). This is needed to get good battery performance, otherwise 3 cores will run at high speed. You will still get the super fluid performance.