> On Dec 4, 2022, at 10:18 AM, Ihor Radchenko <yantar92@posteo.net> wrote:
> 
> Ihor Radchenko <yantar92@posteo.net <mailto:yantar92@posteo.net>> writes:
> 
>> Eli Qian <eli.q.qian@gmail.com <mailto:eli.q.qian@gmail.com>> writes:
>> 
>>> Any idea about speeding up clocking in?
>> 
>> Try reducing `org-element--cache-self-verify-frequency' to a smaller
>> number.
> 
> For some context, self-verify staff will only be enabled during pretest.
> It is an equivalent of ./configure --enable-checking in Emacs. We do it,
> because we absolutely need to catch all issues with org-element cache
> ASAP, before the code goes into Emacs release.

FYI here is how reducing that number helped with my clocktable updates in the order I tested each value.
*** org-element--cache-self-verify-frequency 0.01 
update takes 1:18 (minutes : seconds)
*** org-element--cache-self-verify-frequency 0.005
update takes 0:48
*** org-element--cache-self-verify-frequency 0.002
update takes 0:28
*** org-element--cache-self-verify-frequency 0.001
update takes 0:19
*** org-element--cache-self-verify-frequency 0.0005
update takes 0:20
*** org-element--cache-self-verify-frequency 0.03 (default value)
update takes 3:29