I've done nothing other than play with the CPU OC in the boot menu, i've set it back to default, "Smartass", but this rom just eats battery. I usually find that wiping battery stats on other roms fixes this problem but not here. After clearing battery stats and reboot, i have 5m 45s on battery..
Now it's 15m.. i don't know.. it's very strange reporting for the battery.
I was on the newest build, i flashed back to stock and put MIUI GB on it. Seems to be doing a bit better all around and no flickering of the screen. Upgrading my phone with my carrier anyways so i'll be losing this for a Galaxy Nexus soon anyway.