Pro gives you a few more.

Other than that, the only way is to get higher-speed broadband. If you can get 5mbps broadband, with at least 1mbps upload you can set your speed as a T3 and then Pro will allow you to download from 14 hosts, if they are available.

However, you'll have to be downloading the kinds of large files shared by enough other hosts with similar speeds in order to really see an advantage. Most of the time you'll not notice much difference