>> Just out of curiosity. which bug or improvement or new feature on agenda caused this delay on
    >> showing the agenda buffer?.

    Ihor> Previously, determining if diary sexp is located inside src block (and thus must not be
    Ihor> considered a valid match) was done (incorrectly) relying on fontification. That bug has
    Ihor> been fixed to ensure correctness at the cost of performance degradation.

Too bad. On my case my agenda files does not have src-block's
inside. could I set a variable telling it. For avoiding such penalty?.


[...]


    Ihor> It would be interesting to see the profiler results in emacs27.

Sending the emacs27 profiler too. Do You think It would be relevant doing the
same with emacs-28?