Why is gnome-teminal so slow?

[Jean Francois Martinez]

Gnome-terminal like shipped in RedHat  8.0 is very, very, very slow.
The funny thing is that Mandrake 9 cames with exactly the same version
and it is about ten times faster (not an exaggeration).  As fast as the
gnome-terminal in Redhat 7.x or the standard xterm.

I thought it could be related to fonts or antialisaing so I tried
different fonts, turning off antialiasing and kerning but to no avail.

So why is that RedHat's gnome-terminal is so much slower?

                                JFM