[Libreoffice-bugs] [Bug 141831] New: LibreOffice becomes laggy after typing some Japanese on macOS

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=141831

            Bug ID: 141831
           Summary: LibreOffice becomes laggy after typing some Japanese
                    on macOS
           Product: LibreOffice
           Version: 7.0.5.2 release
          Hardware: x86-64 (AMD64)
                OS: Mac OS X (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: LibreOffice
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: peiqil at andrew.cmu.edu

Description:
I am using Japanese input method coming with macOS. Everything is fine at
first. Then after I type around 100~200 Japanese characters, the UI becomes
laggy (the cursor responds slower, and it takes longer to respond to my keys).
After restarting the software, everything is fine again, even though there is a
lot of Japanese characters on the page. The problem happens again after I type
another 100~200 Japanese characters.

Steps to Reproduce:
1. Open a new document (.docx format)
2. Type a few hundred Japanese characters using macOS's Japanese input method
3. Try to move cursor or type, it should be lagging.

Actual Results:
The software becomes laggy

Expected Results:
No lag


Reproducible: Always


User Profile Reset: Yes



Additional Info:
I did not install any extensions and I tried in safe mode. It still lags. I
reproduced it in 7.0.5.2 and 7.1.1.2

MacBook Pro (Retina, 15-inch, Mid 2014)
OS version: macOS Big Sur 11.2.3
processor: i7-4980HQ
memory: 16GB
graphics: Iris Pro, GeForce GT 750M

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