Hi guys. Since I broke my S4 and I'm still waiting for my replacement LCD, I decided to get back to my old, trusty S2. Wanting extreme ratio of performance and battery, I decided to try out this , Andorid 4.4.4 combo (note: I've tried CM11 and CM12.1 but these roms are waaaay tooooo buggy, slow and do 1 MPG in terms of battery life)
ROM: SlimSaber - i9100 Latest 4.4.4: 20150406 (link: http://forum.xda-developers.com/gala...i9100-t2350201)
Kernel: DorimanX 10.45 v022 (BETA) (link: http://forum.xda-developers.com/gala...4-4-4-t3123487)
Gapps: Open Gapps (arm, 4.4, pico version) (link: http://opengapps.org/)
I've just flashed everything and the speed... is... amazing. Of course I have not yet installed any apps, tried out real-life battery stats, but when I will, I'll post my findings here.