Public bug reported:
Binary package hint: gnome-desktop-environment
I don't know why but the GNOME 2.18 from Feisty feels so slow compared
to a another distro or older Ubuntu GNOME Desktops i.e. 2.16/2.14
environments
** Affects: meta-gnome2 (Ubuntu)
Importance: Undecided
Status: Unconfirmed
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GNOME 2.18 feels so slow
https://launchpad.net/bugs/95264