I am exporting to cocoonjs as i have tried phonegap and had the same jolting issue but performance seemed to be better with cocoon but still not really playable actually quiet annoying know one is going to want to play a game with this issue it just isnt playable this is only. I did a little experiment because ludei said it might have something to do with the amount of textures loading on a layout , soooo i made a layout containing only one texture in bullet motion from right to left and still no change at all same issue