I tried setting up Infinality on my system. Ever since I changed its settings to the Windows 7 font settings the system has been extremely slow. Ubuntu is running slow on KDE Plasma Workspace, and Xubuntu. I'll try out the other environments on this machine to see if they're affected as well.
EDIT:
I've managed to remove Infinality with:
sudo apt-get purge fontconfig-infinality
sudo apt-get install ppa-purge
sudo ppa-purge ppa:no1wantdthisname/ppa
The system still runs slow on all of the installed Ubuntu desktop environments. I did boot into windows as well and noticed a slow down after first logging in; but that goes away after a couple of seconds. Could it be a graphics driver issue?
The device drivers listed in the terminal for my NVIDIA GeForce GTX 660 Ti are:
driver : nvidia-331-updates - distro non-free
driver : nvidia-331 - distro non-free recommended
driver : nvidia-304 - distro non-free
driver : nvidia-304-updates - distro non-free
driver : xserver-xorg-video-nouveau - distro free builtin
Is having more than one driver on the system possibly causing this issue? How could I debug to figure out which package is causing slow down in Ubuntu?