My PC specs:
Windows 7 Professional 64-bit
Intel Core 2 Duo E8400 @3.00GHz
4GB of DDR2 RAM
Nvidia GeForce 9600GT
As the title says, performance while using the editor is bad, really bad. A blank level uses around 30% of my CPU.

The 64 bit version of the editor is much worse, using over 60%.
I suspect it's something related to the rendering pipeline because of two things:
1. If I move the camera in the viewport performance becomes worse, from 30% CPU usage to over 60%. In the 64bit version goes from 50% to almost 100% percent.
2. While opening a menu, like "File", rendering stops and CPU usage goes to single digits.
However, using GPU-Z, which in the Sensors tab, has a "GPU Load" meter, when I move the camera in the viewport the value goes from 0% to 70%, which means that the initial problem might not be rendering related.
I don't think my specs are the problem since UDK Game runs at smooth 60fps @ 720p in Deathmatch mode in the DM-Deck map.
I disabled the post processing effects in the World Properties menu but it didn't help.
Any ideas of what might be going on?
Windows 7 Professional 64-bit
Intel Core 2 Duo E8400 @3.00GHz
4GB of DDR2 RAM
Nvidia GeForce 9600GT
As the title says, performance while using the editor is bad, really bad. A blank level uses around 30% of my CPU.

The 64 bit version of the editor is much worse, using over 60%.
I suspect it's something related to the rendering pipeline because of two things:
1. If I move the camera in the viewport performance becomes worse, from 30% CPU usage to over 60%. In the 64bit version goes from 50% to almost 100% percent.
2. While opening a menu, like "File", rendering stops and CPU usage goes to single digits.
However, using GPU-Z, which in the Sensors tab, has a "GPU Load" meter, when I move the camera in the viewport the value goes from 0% to 70%, which means that the initial problem might not be rendering related.
I don't think my specs are the problem since UDK Game runs at smooth 60fps @ 720p in Deathmatch mode in the DM-Deck map.
I disabled the post processing effects in the World Properties menu but it didn't help.
Any ideas of what might be going on?