Panick, either sometign is wrong with Halo, or may something is screwey w/your system. I have a MUCH older slower system, and I am only getting 20FPS. I would think you could be doubling or triping that with your system. Do you have the framerate lock off in the game? I think it comes locked at 30fps.
Date / Time: 10/1/2003 9:03:02 PM (1163202ms)
1200MHz, 512MB, 64M nVidia GeForce3 (DeviceID=0x0200) Driver=6.14.10.4523 Shader=1.1
C:\games\Halo\halo.exe -timedemo (Version=1.0.0.564)
Frames=4700
Total Time=224.85s
Average frame rate=20.90fps
Below 5fps= 8% (time) 0% (frames) (18.310s spent in 12 frames)
Below 10fps= 9% (time) 0% (frames)
Below 15fps= 15% (time) 4% (frames)
Below 20fps= 42% (time) 28% (frames)
Below 25fps= 70% (time) 57% (frames)
Below 30fps= 92% (time) 85% (frames)
Below 40fps= 98% (time) 94% (frames)
Below 50fps= 99% (time) 97% (frames)
Below 60fps= 99% (time) 97% (frames)
Memory used Max=160MB, Min=128MB, Ave=148MB