https://bugs.kde.org/show_bug.cgi?id=431847
Bug ID: 431847
Summary: Slow Rendering of PDFs (comparing to other rendering
engines).
Product: okular
Version: 20.12.1
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: PDF backend
Assignee: okular-de...@kde.org
Reporter: jack6...@mailna.me
Target Milestone: ---
SUMMARY
Okular renders very slowly comparing to the other rendering engines.
STEPS TO REPRODUCE:
1. Load any avarage PDF (30-40 pages, lots of text, some small-ish photos)
2. Scroll intensively
3. Compare the speed to muPDF-gl version
The difference between Okular (slow) and muPDF-GL (instantenous) is quite huge.
EXPECTED RESULT
Fix for instantenous render like the competition.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch
(available in About System)
KDE Plasma Version: 5.20.5
KDE Frameworks Version: 5.78.0
Qt Version: 5.12.2
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