Public bug reported:

Tested on:

Ubuntu 20.04, Libreoffice 6.4.7.2 
Ubuntu 21.10, Libreoffice 7.1.5.2

A Calc spreadsheet with random text on few columns and roughly every
other row BOLDED is very slow to open and edit. Removing all BOLDING
from the document makes it fast again.

Same effect can be achieved with font coloring. Likely other font styles
too.

Other side effects include File, Edit and Tools menubar menus being very
slow to open.

Test spreadsheet (~50kB, 4k rows) with both bolded and colored rows
provided for testing. Takes about minute to load. File menu takes 10
seconds to open each time.

The last good version without this considerable slowdown is Libreoffice
6.4.6. Opens in few seconds. Menus are immediate.

** Affects: libreoffice (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "test3.ods"
   https://bugs.launchpad.net/bugs/1941765/+attachment/5520914/+files/test3.ods

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https://bugs.launchpad.net/bugs/1941765

Title:
  Font styling makes Calc slow

Status in libreoffice package in Ubuntu:
  New

Bug description:
  Tested on:

  Ubuntu 20.04, Libreoffice 6.4.7.2 
  Ubuntu 21.10, Libreoffice 7.1.5.2

  A Calc spreadsheet with random text on few columns and roughly every
  other row BOLDED is very slow to open and edit. Removing all BOLDING
  from the document makes it fast again.

  Same effect can be achieved with font coloring. Likely other font
  styles too.

  Other side effects include File, Edit and Tools menubar menus being
  very slow to open.

  Test spreadsheet (~50kB, 4k rows) with both bolded and colored rows
  provided for testing. Takes about minute to load. File menu takes 10
  seconds to open each time.

  The last good version without this considerable slowdown is
  Libreoffice 6.4.6. Opens in few seconds. Menus are immediate.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1941765/+subscriptions


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