paradine - as I keep saying, many games we see are GPU bottlenecked, so would not run faster in a native engine.
Ashley you know that this is not true, even if the projects of some users are poorly optimized, the examples provided with C2 are not.
And even they work not well with the most of mobiles using XDK or Phonegap. (15 to 30 FPS default even if the game at runs the same speed you can still see the visual differences between 60 and 30 fps)
The good thing is that the new Canvas+ by ludei is working well on mobiles even if the exporting process has some more steps that you have to do manually.
I don't want to offend any solution for the exporting process containing mobile gaming, but it seems like Cocoon.io seems to be the better than Crosswalk at the time.
(But I don't want to open another disscussion about this because there are already over 100 of this kind...)