It seems that the fast app resume for android has been fixed with the latest Xamarin as well as Monogame.
My question is how come my game in WP8 doesn’t resume that fast? Sometimes it would take me more than 10sec to resume (80mb game). I’ve ran several games and they seems to resume fast.
there are a couple of things you can do to improve resuming on WP8.
First of all you must merge this change in your local MonoGame source if you don’t want your game to crash after a couple of resumes. It will improve the speed somewhat since it doesn’t create new buffers,etc but not running out of memory is what’s important here.
Then you can merge this which will greatly improve loading speed.