I just modified the Auto-Runner example (no transparency and clear bg= no) and build it, here is the results on Samsung s3 mini ,webgl renderer:-
* preview over lan on latest release of chrome browser for mobile phone: fps= 30 maximum
* intel XDK crosswalk : file size = 16mb , fps= 40 maximum
* CocoonJS build: file size= 11mb, fps=60 maximum !
I'm totally amazed by the results!
Now i can start building my game according to these results, if you have any more advices and tips regarding optimization and mobile performance it'll help a lot