Yes, I have my slaves capped at 15 FPS, my main at 50.

Turned down all my graphics settings lower than normal (using the slider bar I'm now just one setting up from the lowest (or leftmost) level). My big problem was when I used the silder bar, it moved the shadow effect up one level. That shadow effect setting is the devil. I'm now playable again but have had two freeze ups while playing and can't crack 30 fps in my main. Just a really nasty zone for me. Only Shatt is worse.

Yes, I 5 box on a single machine running XP. Hardware is good, not great.

I was more interested to see if anyone else noticed a marked difference in Zang as I have. Sounds like not so much.