https://bugs.kde.org/show_bug.cgi?id=361360
--- Comment #37 from Jean-Baptiste Mardelle <j...@kdenlive.org> --- I am also seeing the slowdown on my laptop. I am wondering if this might be related to the Qt version. The big speed gain I experienced was on my PC with Qt 5.7, so maybe some optimizations in Qt make the difference. Jesse, can you check the Qt versions on your 2 machines to see if there is a difference there? qmake -v will output the Qt version... -- You are receiving this mail because: You are watching all bug changes.