System: Vista, quad core CPU. Also, XP+ amd64.
Compiler/IDE: FPC+Lazarus
Libraries/API: not relevant

I am having trouble properly recording a demo of a project.
Even when I am trying to record on my quad core system, I get very mediocre results. It should be a breeze to record it on such a new system. I also tried to record on my older system, which even worse results.
Example: this recording, made with Camstudio (on Vista system):

http://www.youtube.com/v/usENCxndsLs&hl=nl&fs=1

It's a fairly easy game for the graphic card.
Is camstudio not suited for this kind of work (which I suspect)? Should I pay for a better recording system? And what software is the best suitable for recording a project?