Some users had complained about the insane number of queries this adds to showthread. I had mentioned that I developed a fix for this, but still haven't posted it. If anyone still needs to get their queries back to normal, let me know.
You will first need the hack I just released (sorry but it needs file edits if you don't want ANY extra queries):
CES Pre-Process Hooks. I also made a few database changes to make some of the plugin code a little simpler. I will try to remember what they were. Will post the fix tomorrow.