boolean I took a look at your sample capx, and I think you could increase your games performance by using System every --> ? seconds instead of Every tick.
When ever you have a lot of sprites moving at angles it will kill your games performance. My first Android game Falling Fruit Frenzy has a lot of sprites moving at angles, and I had to sacrifice quite a bit of my original game idea to get it to run at a playable speed with CocoonJS.
I don't know if developing for Android is worth all of the headaches, heartaches, and disappointments anymore. I invested a lot of money in Android devises for testing on just because I believed in companies like AppMobi, and CocoonJS. But it seems like they have abandoned us lately. AppMobi's direct canvas I could never get to work with Android, and now that Intel bought there tools, and developers they never come here anymore. And CocoonJS it seems like there new flagship is 3D so I don't expect them to be fixing anything we have all been waiting for, for over a year now like in app purchases, audio, or a ad revenue service that's not a scam like MoPub is.
My disappointments with Android have even left me afraid to invest in other mobile platforms devises. I might just get out of the mobile market all together until I see someone from here actually turn a profit.