I was testing my game today, imported using Intel XDK. On two tablets, both with Android 4.2.2 (one with 256mb RAM and another with 1gb) FPS was quite bad.
My friend tested on his two devices - Fly phone with 5.1 (512mb RAM) and Samsung tablet with 4.4 (1gb RAM) - here FPS was quite good, especially on first one.
Just for the sake of getting more info - can you please specify the RAM and Android versions? The later seems to be of importance.
PS: tried your game on my old tablet Android 4.2.2 with 256mb RAM. The game was ok - but it would freeze a bit from time to time.