Urbackup backup speed over gigabit

First of all i would like to thanks uroni for making this wonderful piece of software.
I want to know what speed to expect when using urbackup in gigabit network.
Currently i test using server and Client 131 to backup 1 file server win2003 to other win2003 and the speed is some how slow.
To backup 500gb took over than a day… The server setting is all default…