https://bugs.kde.org/show_bug.cgi?id=423360
--- Comment #8 from maximumsomething ---
I did some investigating and the problem seems to be that
TileManager::setPixmap is being called with a partially rendered (mostly white)
pixmap covering the whole screen.
Seemingly, whenever a new tile scrolls
https://bugs.kde.org/show_bug.cgi?id=423360
maximumsomething changed:
What|Removed |Added
CC||maximumsometh...@gmail.com
--- Comment #7
https://bugs.kde.org/show_bug.cgi?id=460681
--- Comment #2 from maximumsomething ---
It would fix the biggest problem, yes. However, it turns out setting the dpr of
the source pixmap isn't necessary at all. I went ahead and made a merge request
that addresses both problems. See
https://bugs.kde.org/show_bug.cgi?id=460681
Bug ID: 460681
Summary: Laggy scrolling on high DPI display - profiling
indicates excessive copying in
PagePainter::paintCroppedPageOnPainter
Classification: Applications
Produ
