Android App closing unexpectedly

My Blackberry z 10 stl 100-1 has issues with android apps....I restored once and still some android application like whatsapp,Smule have issues like
1.closing unexpectedly
2.taking too much time to load
3.Wait/close screen in application page
4.Not loading etc
But BB World are still not have any problems,
only this android applications have this issues,
I updated two days before with latest software,restored also,
But still certain conditions it is repeating,Can I know what going in my Z10?

Heck, android apps do that on android phones!
Other than a bump, I'm not going to be any help here. When I was running a Z10, I just gave up on android apps because they were so problematic.
Others have had a bit of success running android apps on BB OS, so somebody should come along with real advise.