Originally Posted by JaySeeJC
I had a same problem with Kubuntu 12.10 on my new E530 ThinkPad Edge Lenovo laptop. Recently my dear friend notified me about that there
is a new kde release 4.9.3 and it can solve all my performance problems with kde desktop effects. After the upgrade, it works for me. So I suggest you update your kde from the Kubuntu Backports PPA.
You can do this by graphical user interface:
Or from console as well:
Follow the instructions can be found here: http://www.kubuntu.org/news/kde-sc-4.9.3
After that you should click on the'Check for Updates' button of the 'muon' update manager application to fetch list of available packages and after click on the 'Install Updates' button to install the new packages.
sudo add-apt-repository ppa:kubuntu-ppa
sudo apt-get install aptitude # if you do not have
sudo aptitude update
sudo aptitude safe-upgrade
Finally, restart the computer. (The KDE restart may be enough.)
I hope this will help.