I wa wondering if it would be a good idea to cange the priority settings for lfs.exe in the task manager? Would it help anything? Would it be a good idea to do this for programs such as Azureus, etc? I couldn't find much on this matter, through I'm shure it has to exist. Help please?

Unless you've got a struggling PC, its not worth it and may cause you more problems than you'd solve.

Limiting the affinity - now that might help

Depends if you have anything running at the same time as LFS.

I have found, when having something like a modelling app running in the background, setting LFS to high(er) priority and putting it on it's own affinity.