Hi,
We've been looking at this demo. I was hoping to update this thread when we have something to report. Unfortunately, although we're sure we can make it go faster, we've been unable to reproduce the poor performance you're seeing. On our test machines with Radeon HD 7970, we're seeing framerates in the low 20's. Even with debug builds of our drivers and the application, we're able to produce framerates in the high teens.
Do other OpenGL applications perform acceptably on your machine?
Graham