FPS can greatly influence your halo skills, or at least, the perception of those skills. I had all of my gfx settings on high, and all of my sound settings on high for the longest time. Earlier this week, I decided to experiment with these settings, after hearing many people talking about how lowering your video/sound settings can increase your FPS. This is not a myth. I was pubbing in an XK server, in chillout. After a few minutes, I found myself in the sniper room, with 3 enemies and 1 ally. All of a sudden, I lagged, and before I even knew I was getting shot, I was dead. GG. Fraps said that my FPS was 8. Awesome. Below is a list of everything that I did to increase FPS. It made a big difference. GFX look shitty, but higher FPS = Pwnage. Give it a try:
1) Change your screen resolution to the lowest possible.
2) Change your Framerate to "No Vsync"
3) Set all of the graffics settings to "Low" or "None" or "Off"
4) Set sound quality to "Low"
I was getting 20-30 fps on average. Now I get 60-80. It's still not 200+ like Death gets, but its a big difference. If none of this stuff works, you need a new computer or at least a new graffics card.