Tweaking performance (esp. font-antialiasing)

Hi there!

I have a slighly outdated version of knoppix installed on a very old laptop. I moved into a new office, and so I have to use this laptop for work now, and I'm trying to tweak the performance. I'm not new to linux, I already have the hdparm parameters set correctly, and I'm using icewm as a window manager (could I gain much by using another one?)

I think one main point of performance is the antialising of fonts, which looks pretty nice, but I don't really need it. Though I used to _enable_ it quite a few times in the past, I seem to be unable to disable it now. Can anybody tell me how to do it? I already disabled loading of the modules "freetype" and "type1" in /etc/X11/XF86Config-4, but that didn't change anything. So, could anyone help me out?

Slightly related, the graphics card is a Neomagic NM2200, so X uses the "neomagic" driver. Is there a better one? I'd guess not, but I figured I'd ask just in case :)

Also, if anybody has any other tuning tips, I'd gladly try them.

Any help is appreciated ;) Cheers
Philipp