Camera movement resolution and other issues

When the data scale changes the camera's resolution in movement changes. I had some data that was rather small and the rotation and panning of the camera was so jerky I could not view the data.
I had to normalize my data and rescale things to make it all work out. This shouldn't be a problem. Either the data should be naturally normalized or some the Camera's position, rotation, etc should be independent of the data size(and scaled after the fact based on data size which should be effectively like normalizing the data).

Also, It is hard to navigate the view using the mouse and camera when the default is rotation. I'm used to the default left mouse being a panning but it is a rotation. Not a big deal but if I accidentally forget to hit shift when I will rotate and because of the issues above it can be hard to get the rotation back to normal. The solution to this would be to have an undo feature or to provide with a higher resolution camera movement using the mouse.

The right mouse button seems to not have any modifiers associated, it would be nice if it did.