Does any1 of u here hav the wazapp icon placed in the quick launch bar ?? I hav it on my device and it takes approximately 5-8 seconds to launch the app from there when it was only running in the background (like closed by swiping down) , and it takes approximately 15-20 seconds to launch after the app has crashed !!
Don't know whether it is wazapp's prob or the quick launch bar problem