Hi Ko, sorry no there isn't really a solution for that - perspective is just fundamentally a different thing than a parallel projection and it's difficult to try and make them behave identically.

In a parallel projection view, zooming is done by changing a scale factor value. In a perspective viewport zooming is done by moving the eye point around.

So the underlying zoom mechanisms are pretty different between the 2.

The best way to make them consistent is to set the 3D view projection to parallel so it will use the same mechanism as the ortho views.

- Michael