QML: Audio freezes the application UI if e.g. download an mp3 file from a remote location

If e.g. an .mp3 file is being downloaded from a remote location, the UI freezes until the download is finished.

The attached example application can be used to reproduce the issue.

Steps to reproduce:
1. build and run the example
2. check that the time is updating on the top of the view
2. tap on the view
3. check the time

Expected result:
The time should be updating eventhough there is a download ongoing

Actual result:
The UI is frozen, the time field isn't updating when there is a download ongoing

The issue is even worse if you comment the 'autoLoad:false' from the example. At the startup it shows a black screen until the download is over.