Comment 3 for bug 380408

Also... found this posted by a guy named Joel:

"Let me guess, you’ve got intel graphics. jaunty is faster than a scalded cat on my nvidia equipped box and sluggish on my intel equipped box. Not an ubuntu problem per se, really more of an intel/xorg/kernel problem - they are in the middle of a huge restructuringof the intel graphics drivers - but it should be sorted out nicely for 9.10"

Sounds about spot on.