[Q] Looking for custom stable rom based on samsung JB

Hi Guys,

first - sorry for my bad english.

Until past few days I was with Paranoid android 4.1.2 Utacka with hydracore kernel and everything works fine.
The problem was with hardware compatibility, the rom does not run heavy games well, in addition I want all samsung tweaks.
I install Allience rom but the problem is - The performance of the rom unstable.
For example: I ran Quadrant Standard benchmark 3 times in 5 minute and get different score: 4200,3500,3000.
Another example: I played Vector and for 2 minute games run smoothly and then the game faltering for 2 minutes and when
I press home button it's takes 10 second to close the game and all the application & widgets reloaded again(I see blank screen for 10 second).

another example it with the basic function - sometimes when I slide from screen to screen it faltering...

the bottom line: The rom is unstable I really don't know why,
Dual core 1.4 GHZ not enough to run android smoothly

anyway Is there any Stable and fast rom with perfect compatibility to the hardware?