https://bugs.kde.org/show_bug.cgi?id=384764
--- Comment #5 from mikko.rap...@iki.fi --- One thing that I have changed lately is the project profile from 720p30 to 1080p25. That seems to have a major effect on playback performance even when proxy clips are 640x360p50. Hmm why are they p50? Shouldn't be needed really... I was able to go back to 17.04.3-1 version but could not see any improvement there. 16.12.3-1 binaries from snapshot.debian.org no longer work on Debian unstable due to Qt dependencies. What could work for me is to use really low project profile 640x360p15 even, but in the past changing profile was a destructive operation which screwed timeline completely when going back to 1080p25 for final rendering. -- You are receiving this mail because: You are watching all bug changes.