I am on Ubuntu 11.04. And Nautilus is very slow. It opens directories for 3-5 seconds even if a directory contains just a few small files. Even selecting of a file or directory with narrow keys is extremely slow and it rises my CPU usage up to 100%. It makes it almost unusable.
But I noticed that if I start my nautilus as superuser:
$ gksu nautilus
then it works just fine. It is fast and responsive.
So what can I do to fix this? Any help is really appreciated.