Hello,

[sorry for the delay, I had some git SNAFUs]

> Could you also send and updated patch containing the VALUE optional
> argument to `org-re-property' and changing modifying only the (re ...)
> line in `org-find-property', with a new profiling?

Seems like this does trick. I don't really understand why, though. The
previous profiling seemed to indicate that most of the time was spent in
`org-entry-get' (that's why I removed it). Anyway, many thanks for
helping me out. Much appreciated.

I attached the new patch.

(let ((time (current-time)))
   (org-id-find "zangwill.nick_2014:aesthetic.judgment")
   (format "%ss" (time-to-seconds (time-subtract (current-time) time))))

--> "0.032598146s"

Here is the profiler report:

- command-execute                                                 215  89%
 - call-interactively                                             215  89%
  - funcall-interactively                                         140  58%
   + execute-extended-command                                      92  38%
   - eval-last-sexp                                                35  14%
    - elisp--eval-last-sexp                                        35  14%
     - eval                                                        35  14%
      - let                                                        35  14%
       - org-id-find                                               35  14%
        - org-id-find-id-in-file                                   35  14%
         - org-find-entry-with-id                                  35  14%
          - org-find-property                                      35  14%
           - save-excursion                                        35  14%
            - let                                                  35  14%
             - catch                                               35  14%
                while                                              35  14%
   + next-line                                                     13   5%
  + byte-code                                                      75  31%
+ redisplay_internal (C function)                                  15   6%
+ timer-event-handler                                              11   4%
+ ...                                                               0   0%

-- 
Florian Beck