[Sony Xperia S, Acro S, Ion] bobikos69:
Go to Settings -> Performance -> Processor -> tap CPU governor and there are options to choose.

Strange - yesterday I've set it to "PERFORMANCE". Now it's "interactive". Maybe it keeps settings untill restart...

edit 05-09 There is a tick box to keep settings after restart :) at the bottom

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So... for those who are not sure if this rom is worth to flash. YES! Don't wait. I've tried almost all of the popular roms from this forum (i think about 20, and all of them as clean and with lots of mods). Everytime I wasn't happy with results. This has changed after flashing this rom. It's very rich in settings. After fashing I've installed gravity box (standard step for me). But in the evening when I've checked all settings app I've noticed that there is what I wanted... Without Gravity... wow I don't know what meant those who wrote that it's laggy... I'ts very smooth. Till now I was trying CM 9 and lots of ICS and JB roms. Twice AOSP had killed my phone and twice tried with KK but left them very quick because of instability. So i think i can say that this rom is very fast. Ofcourse maybe they are measuring times of opening apps in msecs :D like videos on youtube for example ios 3 vs ios 4... Truth is one - doesn't matter if you have shoes from nike or adidas. Your possibilities are unchangeble and differences are marginal. After flashing banks standard gapps its even better. New phone from google is very good. I will not write what this rom contains - it's in 1s post. It lacks of smart social camera (tried to flash but it doesnt work) - but this from google (in gapps) is very good. It aslo could contain sony email app - I have SW2 so I had to push it to system/app. I'm using it almost 24h - without any FC (not coused by me ;) ), without uncontrolled restart. I've flashing some mods, adding functionalities by xposed, installing apps, ets. It's stable. Calls, sms, wifi are working good. NFC and bluetooth will check later - my SW2 is in Sony Service (it's not as waterproof as Sony claim...) but I'll get a new one so not bad :) btw. Yesterday at Orange I saw Z2 which also had water inside - girl had taken it to swiming pool for making some photos... It was first day of use. She bought it during the day and in the evening it has permanent underwater camera effect :) special edition :D LIMITED?

I've didn' tried all in this rom but for now what i made it was succesful and good. It works very good. Before in JB after answering calls i had 1-2 secs of silence. Now I can speak without lag... For me I'ts the best rom for XS - ofcourse I prefer stock sony look and functionality and apps. If your'e not sure - give it a chance lik me - I was sceptic to KK but now I see that it's very improoved since last try... Now it's worth to change JB to KK... BIG THANKS gamzekal and your team VERY GOOD WORK!

edit 05-09 I messed up a bit (I hope that it was me no instability of rom) and i needed to reflash. There is no dependence between wipe cache and dalvik after flashing base and repe rom (as I said before). I did wipe and stuck on boot logo. After refalsh it boots. But this time I had some issues (for first time it worked fine) back wasnt working and keyboard doesn't appear. Enebeling of developer options and changing language (as in 2nd post) worked. After applying theme (the BlueTheme) I noticed that now on lockscreen I have live wallpaper... WOW. For first time I've changed lockscreen wall and after applying theme it doesn't changed. After applying theme system ui had stopped. But after few moments everything was ok.