We found the cause of at least one of the performance/memory problems yesterday. Apparently LimeWire can slow to a crawl when sending lots of metadata (bitrates, etc.) in response to a query. This can happen in leaf or ultrapeer mode. It will typically happen to people sharing lots of files*. We're working hard on a fix and will release this in LW 2.4 in a week or two. The new version should be significantly better.

However, there are some reports that LimeWire will use too much CPU when downloading files, even when disconnected from the network. Has anyone else seen this? Try disconnecting from the network (File->Disconnect) while downloading. If the CPU usage is high, there's a problem. Any data would be most appreciated.

-Chris

*LimeWire should be able to share lots of files without any noticeable CPU impact, since it uses an efficient data structure for queries.