Nautilus is extremely slow
Solution 1:
I fould this on http://subbass.blogspot.com/2009/05/is-your-nautilus-slow-to-open.html
Is your Nautilus slow to open directories?
Fix Naultilus slow loading some directories.
If nautilus is taking an age to load some directories on your computer then you may have Assistive Technologies enabled.
Simply go to the System menu on your desktop and then in Preferences. Click on Assistive Technologies.Untick the box marked "Enable Assistive Technologies" and choose "Close and Log Out" at the bottom of the window.