https://bugs.documentfoundation.org/show_bug.cgi?id=159199

            Bug ID: 159199
           Summary: Improve loading time for simple, large presentation
                    document
           Product: LibreOffice
           Version: 24.8.0.0 alpha0+ Master
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Keywords: perf
          Severity: normal
          Priority: medium
         Component: Impress
          Assignee: [email protected]
          Reporter: [email protected]

Created attachment 191955
  --> https://bugs.documentfoundation.org/attachment.cgi?id=191955&action=edit
Example file from Impress

Attached example file contains about 100 slides of presentation - the Candy
template 4x copy-pasted.
Opening this file takes a short time, but even that is more than the same
content saved as pptx is opened in PowerPoint.
This report is to explore options to reduce load times as much as possible in
this simple content case.

1. Open attached file in current nightly from the commandline, using 
time OOO_EXIT_POST_STARTUP=1 program/soffice Candy-large.odp

With hot caches this gives

real    0m11,957s
user    0m0,000s
sys     0m0,000s

Version: 24.8.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 25276df12abd9d002f7f899900434617b256f745
CPU threads: 15; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: de-DE (hu_HU); UI: de-DE
Calc: threaded

(based on the amount of CLI output, this seems to be a dbgutil build, but
still)

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