Yeah. In my decade of having sites hosted for me and for clients, Pydio is the worst excuse for an FTP interface that I've encountered. It's slow and buggy. Really unbecoming a decent host.
Seriously, DreamHost should consider making this a priority, as it's pretty crucial to have sometimes. Besides that, the whole control panel interface really could use a UI overhaul. It's really stuck in the 90s, at best. The standard cPanel that other hosts are using (HostPapa, HostGator, etc) is better.
It sucks, because I really do stand behind DreamHost as a company, but would be nice if more care was given to overall user interface on the back-end.