MoveUVN can't handle rapid clicks

Is this true for anyone else?

If I click fast on the sliders (I know there are buttons but they are so small), the entire dialog will soon start flickering and then it won’t stop. The flickering will be limited to the dialog but I find it’s best to restart Rhino when it happens.

(Also, holy shit that dialog is RSI inducing… is there any way to get the gizmo to move in the UVN direction instead? Or some keyboard shortcut to restrict the dragging into a UVN direction?)

EDIT: Is an Object Aligned Gumball always in the UVN direction when a Control Point is selected? That’s great if so, but too bad the drag strength can’t be set below 1… though I guess that’s zoom dependent instead of absolute like in that dialog?