What is the most efficient way to export to android apks for Google Play in regards to framerate; Will Construct 2 or 3 support these features to export directly to apk?
Either XDK with Android 5+ or Cocoon.io is pretty good for Android.
There is no direct APK export, you export to Cordova format, and use wrappers like XDK or Cocoon to create the APK file that can be uploaded.
Performance on iOS is much better than Android currently, but Android is still good enough.
If you want to test it out, you can try these games of mine: https://play.google.com/store/apps/deve ... dios&hl=en
It was made with XDK on an older wrapper version that's obsolete. The current one, with Android 5+ (system webview), is about 20% faster than the one I used in the above examples.
All in all, I do recommend a personal license, its not expensive and you are able o publish some big games (even complex ones) on Android & iOS.