as someone here on this topic asked me to stop complaining about C2 and crosswalk performance and as he said "go learn programming", i actually did
now i'm using GMS (game maker studio) and it's more than perfect.
i re-built my game and released the 2nd version.
everything is just fine, constant 60fps on my old device (s3 mini), no single crash report, huge transparent background and huge assets with many frames has no impact in performance at all.
cpu usage is very low, and the apk size is very small.
every thing is smooth, stable and perfect.
check it out https://play.google.com/store/apps/deta ... propaganda