Altium: How do I disable dynamic sensitivity on 3D PCB navigation?

[Psi]

When you navigate around in 3D PCB space the sensitivity of the input axis's change dynamically.
When the view gets close to your PCB it gets less and less sensitive (in the depth direction) until it almost stops working altogether.
(I think this is intended to stop you accidently flying too far and going straight through your PCB and out the other side)

However this is really annoying, it often makes it hard to get the 3D view I want.
It's annoying when using the mouse but even more annoying when using a 3D space mouse (eg 3DConnexion) and wanting to fly anywhere.

Does anyone know if this can be turn off and how to do it.
I had a look but couldn't see anything.