It does run slow and there is nothing that can be done about it. It is the way it was coded. Your computer is fantastic looking spec wise, so no worries there. I really think Steinberg should offload the processing to the GPU to alleviate the slow redraw rate. With Cubase 7 running, everything is even slower.
If you undock the Mixer section for example and move it to another location and the Peakmeter are performing
slowly:
Just close the Mixer- View in your HALion 4
I was just about to ask a similar question as nicusorb did. In my case, even if I don’t undock the mixer, the vumeters start moving very slowly after I load no more than 4-5 instruments, although the CPU is only at about 50-60%. Unlike nicusorb, I have a much slower system (a T4500 dual-core at 2.3GHz with 3GB DDR3). Still, is it normal to get such a poor performance of the vumeters with just a couple of instruments loaded?