Things are getting better. I made some changes to optimize things, one big tip came from the master, Clifford Adams himself.
The problem, speaking globally, is that Clifford's original design goals were toward a small and easy installation. He never envisioned a wiki trying to handle this many pages and updates and pageviews.
Still, his software is well written so that it's mostly a matter of me identifying bottlenecks and speeding things up.