Also, there is a good new KDE option for limited resources:
kubuntu-low-fat-settings package.
I will check it some time later and add to the scripts or confirm that it's installed in the armel image. But you are welcome to check it ASAP

P.S. As long as SGX-drivers was not working as I expected, I'm going to comment relevant lines in the new scripts. But only after fresh testing with fresh images.