I singed in cocoon.io page and did several tests.
the first:
Construct 2 export (Android 4.4 kitkat) ->
-Canvas + Worked very fast.! Excellent! 6mb file size
-Webview Worked extremely slow! 1mb file size
-Webview + Worked very fast.! Excellent! 21mb file size
Construct 2 export (Lollipop Android 5.0+) -> Android upload error
Thank you so much for sharing this info, did the same tests and got the same results ( file size too)
Webview on android 5+ seems to be great ( file size is perfect)
Was struggling with intel xdk (3522) when installing the game on Samsung S3 (4.4.2) (unplayable slow)