My first question would be the type of hosting for your backup. Cloud, local or hybrid?
3 Colt Drive
Fayetteville, AR 72703
Office 479-443-2700 ex110
Hybrid is a combination of local and cloud. Of course anything on the cloud's speed is a function of your internet speed.
In your client software there are settings for capping bandwidth on the network etc. Your IT department may have set these.
There was a webinar on setting these. You might do a search for network settings in the help section.