Improve you render times with After Effects…
With this you will fly fly fly like a very fast plane with your renders. I make the test with a very complex scene composed in a big composition 5000x7000 pixels, with a lot of elements. Outside this composition camera moves within a 1025x576 composition.
If you renders as is, in FULL - Current options + Motion Blur activated the composition gives me approximately 1h of render.
Then if you select a view port (that cover all the composition 1024x576) in same conditions the render only takes 5 minutes!!!!