[Libreoffice-bugs] [Bug 104295] Impress edition is very slow outline view

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=104295

--- Comment #13 from sbub <schnitzelbub at posteo.de> ---
I experience this laggy performance in most recent Impress, as well.

As observed here:
https://ask.libreoffice.org/en/question/261988/libreoffice-calc-70-very-slow/

I can confirm that the delay is related to Open Document formats only. Here are
the repro steps for a simple presentation without heavy content (no images,
just headlines):

1. Create a new Impress presentation
2. Add slides
3. Store as *.odp
4. Navigate through slides (e.g. via Page-Keys) -> delay between slides changes
around 2-3 seconds
5. Save the presentation as *.pptx
6. Navigate through slides -> no noticeable delay

The application seems to be a bit more responsive when changing through slides
in the "Notes" view, but lacks massively in "Normal" and Presentation Mode
(F5).

Files are local (SSD), no network involved running LibreOffice:

Version: 7.1.1.2 / LibreOffice Community
Build ID: 10(Build:2)
CPU threads: 4; OS: Linux 5.10; UI render: default; VCL: gtk3
Locale: de-DE (de_DE.UTF8); UI: de-DE
7.1.1-1
Calc: threaded


Regards,
sbub

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