Opensuse11.4: Why does the font messaging system slow down ??

Opensuse11.4: Why does the font messaging system slow down ?? -- Linux general technology-Linux technology and application information. For details, refer to the following section. I am using the notebook model Lenovo IDEAPAD Y550. Everyone should be familiar with it.
In the past, I used Windows 7. I didn't feel any new idea. I installed OPENSUSE11.4 on the hard disk in Windows 7. After all, I used to use a desktop for a while.
The video card is successfully driven.
However, after several days, we found that the system was slow and the font was lacking. When running the 3D effect, the system crashed. After waiting for a long time, the 3D effect was stopped because of slow response.
I wanted to learn about LINUX. I am sorry. I hope you will be lucky enough. I hope you can thank me again and again !!!!!!
CPU Information
CPU: Intel (R) Core (TM) 2 Duo CPU P7450 @ 2.13 GHz
Speed: 2,133.00 MHz
Core: 2
Memory Information
Total memory capacity (RAM): 1.9 GiB
Available memory: 30.2 MiB (+ 1.4 GiB overspeed cache)
Swap space: 2.0 GiB
Operating System Information
Operating System: Linux 2.6.37.1-1.2-desktop i686
Current User: pr@linux-uuoo.site
System: openSUSE 11.4 (i586)
KDE: 4.6.00 (4.6.0) "release 6"
Display Information
Supplier: nVidia Corporation
Model: GeForce GT 130 M
2D driver: nvidia
3D driver: NVIDIA 270.41.06
Battery Information