KWin (KDE4 from rawhide) using way too much CPU

[Vini Engel]

Rex Dieter said the following on 07/13/2008 03:00 AM:
> Vini Engel wrote:
> 
>> My machine is an "Intel(R) Core(TM)2 Duo CPU T9300 @ 2.50GHz" with 4GB
>> of RAM and a "nVidia Corporation GeForce 8400M GS" with 128MB.
> 
> Which X drivers are you using?  NVidia's are known to have some serious performance problems highlighted when using kde4's Desktop Effects

This is the version - 173.14.09-2.lvn9.

Should I try to install the driver using the installer provided by 
nvidia instead?

Thanks
Vini