Hi, I have a Lenovo W540, which has a 2880x1620 on a 15.4" 395mm Screen.
Overall Rhino runs good at 3K with no visual problems or artifacts in the rendering windows.
I upped the line and edge width to 2 pixels, at a speed hit. Unfinished lines are drawn 1 pixel wide until completed.
At this resolution, I lowered the anti-aliasing to 2x, which recovers some speed, coming from a GTX 570 desktop to the K2100m.
I changed the point and control point sizes to 4 pixels. Oddly I’ve always wanted the option for points these to be round.
I kept the tab sizes small, for some reason.
I worried about seeing the grid, but it is visible.
As far as the future, one sized larger button size would be better.
I run 120% text, which crowds the lower status line, while there is still room to the right.
The layer icons must be chosen with care.
It’s definitely usable, could be a little better, and not anywhere as bad as PhotoShop.