On 05/03/2021 04:03, Samuel Wales wrote:
> interesting.  that would be great to speed it up.  [i just meant that
> the file list used to be correct.]

I am a bit disappointed. I have managed to get x2 performance boost. At 
first, the result was x2 better but I realized that I did not added 
heading cleanup for the new strategy. It adds several regexp to the 
inner loop and severely hits performance. I do not like the idea to 
manually inline (with minor variations) existing functions and regexps, 
but the function is still slow.

For a while, improvement is significant, so I am attaching the patch 
that should make jumps using org-goto or org-refile faster. I hope, I 
have not broken anything.