Which Operating System (OS) are you using? (mac/win 98, win xp, etc.)
May I suggest some things: As a dial up user you certainly won't be operating as an ultrapeer (UP) so go to your Tools>Options>Speed & tick option for Disable Ultrapeer capabilities. Press Apply. Options>Uploads>Basic: Reduce your upld speed to below 40% for dial up. Options>Dwnloads: Tick option to Autoclear Completed downlds then tick Apply button.
Close any windows you're not using such as Monitor & Connections windows & even Library window if your not using it.
I don't recommend using the Resume or Find Sources functions on more than a few files otherwise it will use up a lot of LW's & your Systems's resources, and also result in your files queuing for much much longer. And can affect your LW connection quality.
Some tips: 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.