Picking assets is very slow when clicking on a folder with many subfolders (containing many assets). "getAssetsInFolder" is called repeatedly, however the time interval between calls is about 15-~100 seconds...
It seems that the performance improvement that we did for the Assets App does not apply when using the asset picker dialog (damLinkField).
The picker dialog tries to iterate into every subfolder and into every asset, presumably to find out, whether it is necessary to show an opening arrow.
Affected version: celum-dam-connector-1.0.3.beta1