Thanks for your replies. I’ve now had a good play…
I have copied the scene and stripped it out. I now only have a point light and the character in the scene (see image).
I have a level sequence that I can scroll through and my character moves accordingly.
Now here is the crux of the problem…
Moving the slider backwards and forwards makes the character move, but any given frame takes a second to “sharpen”. So scrolling through it’s pretty crappy, but pausing on any frame and after a second it’s fine.
What I need is the render to wait until the frame has stabilised before output, rather than blasting through and rendering frames before they have sharpened. Is there a setting for this somewhere?