Hi, Nicolas Goaziou writes: > Samuel Loury writes: > >> Nevertheless, org-mode is rather slow when my todo.org file becomes >> quite large (~20K lines). > > Could you share some profiler information under typical usage so that we > can tell which parts are slow? I have made a custom agenda command¹ to implement a "kind of" GTD workflow. On a quite old computer with no SSD disk, the commands takes about 20 seconds. My org files sum up to 27K lines and 2629 headings (with the archives, there are 5630 headings in 66K lines). I attached the result of elp-instrument-package "org-" when running this command without the archives. I don't know if that helps... My best :-).