https://bugs.documentfoundation.org/show_bug.cgi?id=152911
--- Comment #20 from Jeff Fortin Tam <nekoh...@gmail.com> --- Just some wild "what if?..." guessing based on what M. Knepper's video in comment #19 about the high CPU usage in htop while scrolling a wall of text... * Let's say you grab a 4K screen, but do not set the display scaling to 2x HiDPI, just use it at its "native panel resolution", and size the libreoffice window at various sizes (ex: a quarter of the screen, half of the screen, full size of the screen, etc., do you still see this happening, and do you see differences in the percentage of CPU used in each case? * Could Cairo be the bottleneck? I see we're all running the Cairo version of LibreOffice, not Skia: as far as I know, Cairo is all CPU rendering, whereas Skia renders everything (I think?) on the GPU and should be an order of magnitude faster as a result. Maybe you could try running the Skia version (using the trick in https://github.com/flathub/org.libreoffice.LibreOffice/issues/213#issuecomment-1450176774 for the flathub flatpak version) and see if the problem vanishes with it? -- You are receiving this mail because: You are the assignee for the bug.
