Bug 434531 - slow performance
Summary: slow performance
Status: REPORTED
Alias: None
Product: dolphin
Classification: Applications
Component: general (show other bugs)
Version: 20.12.3
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Dolphin Bug Assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-03-17 08:00 UTC by b.mitsov
Modified: 2021-03-17 08:00 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

Attachments
lagging sample video (just opening and scrolling no other operations) (2.57 MB, video/x-matroska)
2021-03-17 08:00 UTC, b.mitsov 		Details
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Description b.mitsov 2021-03-17 08:00:07 UTC 
Created attachment 136771 [details]
lagging sample video (just opening and scrolling no other operations)

SUMMARY
Slow performance at all. Loading directories is slow. Showing files' and folders' size/content is slow. Copy/Cut - Paste operations are starting slowly (what I mean is even I have already pasted a file or folder, using keyboard shortcuts, pasting starts after a few seconds right after files/folders size/content... During this loading scrolling is also laggy and slow. To have smooth experience every time I want to do something using Dolphin I have to wait to load some information. It used to be smoother on KDE Plasma 5.21.
I'm not meeting similar issues with other file managers.

STEPS TO REPRODUCE
1. open big directory and start scrolling - laggy
2. copy a folder/file
3. open another big directory and paste fast - have to wait until it loads to start pasting - slow and laggy

OBSERVED RESULT
delay (a big one) noticed

EXPECTED RESULT
smooth, fast and productive experience as it used to be

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: KDE Neon 5.21
(available in About System)
KDE Plasma Version: 5.21.2
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION