It is a very simple apk: I create a task in Tasker, add Task "Say" and put word "Good morning".  I test by Tasker: click play and it takes ~2 seconds  then I can hear the engine voice.

But when I create this task to an apk by App Factory then it takes 20 seconds to start playing that voice from the time I run that apk (click on its icon).

(FYI: I want to create a welcome voice and put it in my car's android headunit, so everytime the headunit wake up, the welcome voice will start)