The site where it's hosted is a free site with limited bandwidth, so yes, it tends to be slow. Depending on what SVN software you use, though, you might just need to be patient.
If you want to donate SVN repositories, that's great. But can you guarentee that the repositories will exist in, say, 3 years? That's my primary concern. Ideally I'd like to host the code on the Darwinbots webspace, but I don't think we can.
Also, as a very mild side point, I really enjoy the "Tracview" feature that the current host provides. Would we have something comparable at other places?