Unreal Gold

227 doesn't support UGold yet. It reverted your installation to stock Unreal.

It runs too fast because its frames are unlimited, and since they are counted in a byte (255 max.) when your framerate goes over the top the game starts acting up like that. Just enable VSync. Alternatively, you can install the Anthology patch from OldUnreal and then in the INI under your renderer set "FrameRateLimit" to 200 or less.

enable VSync, then restart the video card setup, when you go into setup to change your video settings it prompts it will restart "Unreal" on the setup screen when it restarts, do an ctrl/alt/del bring up the task menu, right click on unreal, set affinity to 1 core. Everytime you play you may have to do this. I wonder about AMD's duo-core fix, Intel might have one of their own, there is a utility to help launch programs and how many cores they use, but I don't have links handy right now.

trying to set affinity while the game is running causes the game to run slow (when you started it it already set the game working speed, you have to start the game ahead of that, why the vidcard setup tweak)

The affinity thing isn't really needed on 90% of the setups. Cool n' Quiet is more of a problem.