I've noticed that if I set my connection speed to modem, the limit for hosts is 3. Ultrapeers take much less bandwidth that simple hosts, so why did the limit stay the same as in previous versions that didn't support ultrapeers?

Also, I noticed that when I select my connection speed as modem LimeWire can barely keep 3 hosts with ultrapeer, but when I set my connection speed to T3 and connect to 20 it keeps it fine.