To get the BEST speed from your DL's, First make sure that you are set to BROADBAND in the Tools area,and change the Search criteria to only 3 and 4 star rated and only T1 and T3 connections...this will make Limewire fly for the most part(unless people are untruthful about their connection speed(who would do such a thing?)), Also adjust how many Downloads you are concurrently running,I find that 2 to 5 is usually the best for me,2 when all have 10(8 on Basic) hosts and 5 when all are between 1 and 9.

Also,if you have PRO it Adds more Ultrapeers to make things faster.