I’m find some oddity with neon time to time. After working in Rhino with neon active, for some time, I find turning layers on and off creates a huge lag. Ten to 15 seconds. Restarting Rhino seems to fix this. I’ve mentioned this before.
Also…and probably a Brazil issue, I’m getting a very dramatic lag on redraws when rotating an environment map when I have a fair amount of polys in my scene. The more polys and the slower everything becomes. This is understood but an app like Arion handles this much, much faster so there seems to be some solution to this.