I have been developing my game for iOS/Android and it stays between 57-60, I use the 960x640 resolution which seems to work pretty well. Although my game isn't super intensive ( http://gamejolt.com/games/sports/pixelgolf/36149/ ) but it's pretty steady on most devices. You need to make sure of the resolution, sizes of the images you are using for sprites, and other silly scripting mistakes.
tested even at my pc , started your capx project from c2 (not beta), then remote access over ip, lookes smooth at my moto g with 4.4.4 os. only the up event is with tap gesture, means at y axis the red ball move only at tap,tap,tap,tap.