This has nothing to do with export or render settings, it's actually the camera setup and lack of motion blur. Export a still from any video camera moving sequence during a turn and you will see that everything gets blurred. (test it even with a camera phone for video)
Turn motion blur on, although it will blur a still frame when looked at as a moving animation all will look smooth, and when you aren't moving fast everything will be crisp. Look up shooting video with a DSLR and you'll find that most shoot video with a shutter speed around 1/40th of a second. So first task is making sure that your physical camera settings are real world scenario or close. I actually find that to be a bit too much so I stray more towards 1/60th. Use the ISO to balance out your lighting levels, or Fstop if you aren't baking in DOF. (hint want to look more real....all cameras shoot with DOF shouldn't you?)
to get a smooth animation with no motion blur turned on, you would need to render at an excessively high frame rate, not worth the rendertime. As a crutch you could throw your final product through aftereffects, and use the timewarp effect with motion set to 100 and enable motionblur. It does a pretty good job reading your before and after frames to measure pixel motion and give a pretty realistic post production motion blur.
all these kill your render time so make sure you have optimized as much as you can with materials and lighting but the fact is that if you want it to look right, you've got to do it right.