Party performance problems - Computer too slow?

[mondonman]

I used to 12-table Stars while running PT and PAHUD without experiencing any performance problems.

Now at Party (running PT, PAHUD and MTH) even 6-tabling has become a big problem.
Tables are sometimes frozen for several seconds after popping on top, PAHUD needs 1-2 seconda for drawing the numbers and the buttons appear after that.

I am using a AMD Athlon 2000XP+, 1.67 Ghz and 256 MB Ram.

Sorry for being unspecific. I am a hardware donk. Any ideas?