https://bugs.kde.org/show_bug.cgi?id=278046
--- Comment #21 from Louis Moureaux <m_loui...@yahoo.com> --- Sorry for the email replies with quotations. I quickly confirmed the following in a Qt 6 build: Editing long messages is slow. I typed the word "test" many times, one on each line. I start feeling the performance at 100k words, and at 500k words it becomes unbearable (1s to type a single letter). KWrite is still super sleek at this level. I did the same test in a simple QTextEdit and got results similar to KMail's editor. It does seem to be a Qt bug. -- You are receiving this mail because: You are watching all bug changes.