cpu bandwidth limit
 

I just started using limewire myself and have had the same problem and just posted not seeing this post.
One thing I did was when in task manager and under Processes I right clicked on limewire and and went to set priorty and choose below normal. So far my computer acts as normal now.
Don't know if this a long time solution.
ekih

Haven't thought of that!
My system still working well with reduced file sharing(1600 files) but will try lowering the priorty and increasing file sharing again.
Cheers!!