[kmail2] [Bug 484328] New: Kmail config dialog takes about 40 seconds to show up

[Kevin Krammer]

https://bugs.kde.org/show_bug.cgi?id=484328

            Bug ID: 484328
           Summary: Kmail config dialog takes about 40 seconds to show up
    Classification: Applications
           Product: kmail2
           Version: 6.0.1
          Platform: Neon
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: config dialog
          Assignee: kdepim-bugs at kde.org
          Reporter: krammer at kde.org
  Target Milestone: ---

Created attachment 167655
  --> https://bugs.kde.org/attachment.cgi?id=167655&action=edit
Kmail log entries from journald

SUMMARY

Since upgrade to 6.0 opening the Kmail config dialog for the first time after
startup takes 30-40 seconds, with CPU load spiking.

Most likely related to querying font information because it spams the log with
OpenType messages (see attachment).


STEPS TO REPRODUCE
1. Start Kmail
2. Settings -> Configure Kmail
3. 

OBSERVED RESULT

30-40 seconds of high CPU load before dialog shows up.
log (via journalctl) gets hundreds of entries related to OpenType

EXPECTED RESULT

Config dialog shows up in a couple of seconds.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Neon 6.0
(available in About System)
KDE Plasma Version: 6.0.2
KDE Frameworks Version:  6.0.0
Qt Version: 6.6.2

ADDITIONAL INFORMATION

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