When I try to zoom with my mouse wheel (without holding control), it's very slow in large assemblies. When I turn Orient Mode on, however, it zooms in real time. I don't want to click Orient Mode every time I want to navigate around my model. Is there some config option I'm missing? I'm using Wildfire 3.0.
I can't say I've heard of that problem before. What are your system specs (OS, graphics car, driver, etc.)? I'd guess it's graphics related, you can try adding the config option "graphics win32_gdi" and see if that helps. I believe that essentially bypasses your graphics card so you can see if it's the source of trouble.