If your VGA is using an NVidia chipset, then you'll find that installing NVidia proprietary driver makes your desktop respond a lot faster and smoother than the default open source driver. This is especially so if you have compiz enabled and has the desktop effects.
Installing the NVidia drivers is very easy with Hanthana as it has the RPM Fusion repositories enabled.
To install the Nvidia drivers:
Open up a command terminal,
Change to root user with :
Enter your root password and get the root prompt.
After that run :
This one package pulls in all the necessary packages needed to run the nvidia driver and will install them all.
After that reboot the PC and it'll load the NVidia drivers and you'll see a major performance boost in the graphics.