If your Limewire really is configured to optimum performance then no... Well not on the files you are currently downloading at least.

If you had a faster connection then buying Pro and trying to reach Ultrapeer status might have helped.

But with a slow connection there is not really much that you can do other than configuring Limewire to the max

Some legit files have more than a few hosts, but if you are going to try that remember to use Bitziweb lookup to check if the files are really what they say they are

right-click on searchresult and choose lookup file with bitzi