Finding new sources can help. Occasionally do the search again. You can select it to re-do the search by right-clicking any file in the search results & selecting Repeat Search.
Update your Java so LW runs a little more efficiently:
Java 1.5 (take the JRE)
After you open LW, wait until it settles down befoe doing searches. Depending on how many incomplete files & shared files you have this can take some time.
Here's some hints: A well set-up LW can start to automatically continue its dwnlding after it's settled down perhaps 2 out of 3 times you open LW.
Optimising LW & Maximising Uplds & Dwnlds A (1st post only) & also
Part B which is even better & last & least are
search & dwnld hints. The latter one I've been thinking about re-writing for some time. That's just for playing it safe. eg- I show all speeds & qualities.