(ubuntu 9.10) XP in virtualbox, sluggish performance
 

I virtualized XP, and it's rather slow. I allocated 1.5 gb of ram, dynamically expanding storage. When I go to system in control panel, it says my processor is 880 mhz fast.

I have an amd64 2.0 dual core.

Dynamically expanding storage is something Microsoft products don't take well too. If you use a fixed-style storage you will notice improvement depending on how much you allocate to it. 50 GB is very sufficient for abase install of XP to have ideal performance.