suse 11.2 kde4.3 sluggish in virtualbox

I am using opensuse 11.2 kde4.3 and wanted to test kde 4.4 on a vbox before upgrading.
I installed openSUSE-11.2-KDE4-LiveCD-i686.iso in virtualbox. I assigned it nearly 2 Gbs of memory.
The whole process of installation was painfully slow. Once everything was installed, it is a complete snail.
Any ideas?

(I swear I did a search in the forum before posting, but couldn’t find anything).