I can confirm that loading the first instance (standalone!) takes more than 5 minutes on my system. The "Scanning licenses" prompt only appears for 1-2 seconds, then apparently nothing happens for about 5 minutes (the dock icon even stops bouncing, without displaying the little black wedge to show that the application is running!), and then finally the GUI appears.
Syncrosoft license control center 5.0.3b, PowerMac G5 quad, 4.5 GB RAM, Mac OS 10.4.5, Vienna key directly plugged into one of the rear USB ports.
Syncrosoft license control center 5.0.3b, PowerMac G5 quad, 4.5 GB RAM, Mac OS 10.4.5, Vienna key directly plugged into one of the rear USB ports.