I've never worked with Blender (I tried; don't like the interface and doing two jobs inside one app) so I don't know how camera movement is handled. But one thing which might help is, have the camera moving before you want it to pan down.
For example, have it move just 1 cm along the flight path of the ship. Or have it moving 1 cm up the vertical axis. But also, have it panning down maybe 1 or 2 degrees before the big pan. It might help to smooth things out by not having the camera suddenly jerk into motion from a dead standstill.
In Lightwave, I would go into the motion graph editor and play with the controls that changed how smooth movement transitions were. I'll be honest, I didn't always succeed. Sometimes I had to change the shot to get rid of that little jerk.