[konsole] [Bug 424492] New: Scrolling in nvim slow specifically with Konsole

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https://bugs.kde.org/show_bug.cgi?id=424492

            Bug ID: 424492
           Summary: Scrolling in nvim slow specifically with Konsole
           Product: konsole
           Version: 20.04.3
          Platform: Manjaro
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: emulation
          Assignee: konsole-devel at kde.org
          Reporter: ihasdapi at gmail.com
  Target Milestone: ---

SUMMARY

Poor scrolling performance on Konsole with NeoVim even on small files and with
syntax off. Large CPU spikes. No similar problem observed on yakuake or other
terminal emulators with the same neovim installation. (just coc.nvim and basic
plugins) Pageup/Pagedown + Ctrl-U/Ctrl-D work fine. But some decent arrow
key/hjkl scrolling performance is pretty important to a decent user experience.


STEPS TO REPRODUCE
1. Open file 
2. Scroll with arrow keys/hjkl

OBSERVED RESULT
Slow, choppy, and laggy scrolling

EXPECTED RESULT
Responsive, normal scrolling.

SOFTWARE/OS VERSIONS

Linux/KDE Plasma:(Kernel?) 5.6.16-1-MANJARO
(available in About System)
KDE Plasma Version: 5.19.3
KDE Frameworks Version: 5.72.0
Qt Version: 5.15.0

ADDITIONAL INFORMATION

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