ie: What are you running it on?
I'm guessing it's the 233Mhz iMac you mentioned a while ago. I can guess it's going to be quite slow on that, even in OS 9. Definitely so in OS X.
It's bearable here with 500MHz, the times I've used it. I guess you could try some of the old favourite tactics to increase speed, like reducing the colour depth to 16 bit (er, "Thousands") or (gulp) 256 colour.
Did you get the RAM upgraded, that could be taking a toll, too. I know 192MB just isn't enough on this thing. Again, depends if you're in 9 or X.
Good luck!