It is possible to configure Ghost utilize more bandwidth?

All,

Our Ghost 3.2 RU2 server is on a 10 GB link, the clients seem only can utilize about 3.5% -5% of the total network bandwidth when downloading an image. Is it possible to configure Ghost64.exe to utilize more bandwidth?

I did some testing and proved that the server can push more data, the client can pull more data through the network while it is imaging, but for some reason Ghost will not use all available bandwidth.

Any ideas? Thanks much!