Performance using EMDK for Android

Hi everyone,

I have developed a few apps with the EMDK for Android. But everytime the application is getting bigger, the performance is getting weak and slow. I have tried to put as much code as i can in Handlers and Threads but it is still laggy. My biggist problem is the scannig. I only can start scannig after a few seconds like in the unofficial sample EMDK for Android in Multi-Activity App

Now my question is: Does anyone have the same problem and know any solution for that?

Or does anyone have a multi-activity solution that works proberly?

I'm looking forward to read a nice discussion.