Hi Steve,
Since several recent WIPs (including the latest one) the scripts that use DisableRedraw [ do things ] EnableRedraw show major slowdown compared to V5.
Try the snippet below to see it, and then remove the Disable/Enable redraw lines - then it is blazing fast as your new display engine. We have a lot of tools that rely on disabling redraw>changing view/objects etc>enabling with lots of iterations or real-time, so hope it can be fixed and they can take advantage of the new speeds!
Option Explicit
Call Main()
Sub Main()
Dim i
For i=0 To 50
Call Rhino.Sleep(1)
Rhino.EnableRedraw False
Call Rhino.RotateCamera(, 1, 0.5)
Rhino.EnableRedraw True
Next
End Sub