@stevebaer @jesterking Just wanted to flag/bump that on high dpi screens, particularly with low end or integrated GPUs (ie. 4K ultrabooks) this issue (https://mcneel.myjetbrains.com/youtrack/issue/RH-46273) investigated here (Grasshopper performance - 5 vs 6) would solve a lot of problems. In normal view modes Rhino 5 with AA looks just as good as Rhino 6 but only has to render 1/4 of the pixels and hence runs significantly faster, which is particularly noticeable with dynamic changes from Grasshopper (kangaroo etc runs at >200% performance in 5).