A few tips for that...
1. Download only those files with highest number of #'s
2. Download only if the speed is mentioned as T1 or greater. Sometimes, DSL/Cable too will do fine.
3. Use the PRO version, it gives more search results and thus more #'s
4. Dont download unless the connection to the server is at Very Good at least.
5. U can use Lime Wire Acceleration Patch. Jus google for it.
6. Make sure you have given it full access through a firewall.
@Raiden Bee - I never have problems like that at all. Never in my history of LW usage