Nimtrix , as i heard cocoonjs is the best engine until now and you can use it on iOS by some tricks on Mac also if you use cocoonjs on iOS and the game worked very well then you will know that is the game will also work very well on android (90-99% true)
so you can borrow a mac pc or macbook from someone and do the steps on this link : (from ludei)
http://www.ludei.com/tech/cocoonjslauncher
also in that page you will see if the cloud opened and i think the picture tell itself , create html5 ->test with cocoonjs-> compile to cloud.
the cloud will have the same performance of cocoonjs launcher ^^ (or better i think)