https://bugs.documentfoundation.org/show_bug.cgi?id=161900

            Bug ID: 161900
           Summary: Calc row manipulation slows down dramatically after
                    saving document
           Product: LibreOffice
           Version: 24.2.4.2 release
          Hardware: All
                OS: Windows (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Calc
          Assignee: [email protected]
          Reporter: [email protected]

Description:
If a document is on the larger side and takes a while to save, then saving
dramatically slows down the insertion and deletion of rows (we are talking
about a hundred times slower on my main doc, and I couldn't find a way to speed
it up again without restarting the program)

In this example, I opened a new calc doc, wrote random data in the first 26x26
range using a macro, put background colors and borders on random cells and
copied that sheet 19 times for a total of 20 sheets.

The deletion and insertion remained quick, however, if I save the document
(even without changing any data at all) both the deletion and insertion becomes
awfully slow. 

Steps to Reproduce:
1. Open Document
2. Run the deletion or insertion functions
3. Note the speed (should be fast)
4. Save Document (you can even undo the changes before saving)
5. Run the deletion or insertion functions again
6. Note the difference in speed

Actual Results:
Both Insertion and Deletion of rows becomes slow

Expected Results:
Insertion and Deletion should have kept their original speed


Reproducible: Always


User Profile Reset: Yes

Additional Info:
Version: 24.2.4.2 (X86_64) / LibreOffice Community
Build ID: 51a6219feb6075d9a4c46691dcfe0cd9c4fff3c2
CPU threads: 16; OS: Windows 10.0 Build 19045; UI render: Skia/Vulkan; VCL: win
Locale: de-DE (de_DE); UI: en-US
Calc: CL threaded

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