frostwire is limewire by the way except for it's suppose to provide some things that limewire has only in the paid version and not to follow limewire's and riaa's plan to make it nearly impossible to download mp3s that are copyrighted..

anyway, i have over 3,000 + shared files and yes sometimes mine does go slow however if you want to, and use peerguardian block the client from chatting with the client server when it starts up, as there is no otherway to block the ips and this may cause some of the slugginess also there is no way to disable chat i believe except for this, plus it starts up faster.. i'll make another thread concerning this while i am on now..

edit: by client server i mean chat server such as chat.peerguardians.net