Bug 513390

Summary:	Window previews appear at different speeds
Product:	[Plasma] plasmashell	Reporter:	fw.smit01
Component:	Task Manager and Icons-Only Task Manager widgets	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	CONFIRMED ---
Severity:	minor	CC:	nate, qydwhotmail
Priority:	LO
Version First Reported In:	6.5.2
Target Milestone:	1.0
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description fw.smit01 2025-12-15 11:02:32 UTC

SUMMARY
If you hover over an app icon you see a preview/name after a delay. However when you then hover to another app icon sometimes this preview appears immediately and sometimes you have to wait for the delay again. This makes the system feel sluggish.

I think it should always appear immediately. This happens for example with icons in the system tray. If you hover over one and move to another, the next preview immediately appears.


STEPS TO REPRODUCE
1. Hover over an app icon in the task manager
2. Wait for the preview to appear
3. Hover over the next icon in the task manager

OBSERVED RESULT
Sometimes the next preview appears immediately. Sometimes you have to wait again

EXPECTED RESULT
It always appears immediately

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 42
KDE Plasma Version: 6.5.2
KDE Frameworks Version: 6.20.0
Qt Version: 6.9.3
Kernel Version: 6.17.7-200.fc42.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 12 × Intel® Core™ i7-8750H CPU @ 2.20GHz
Memory: 16 GiB of RAM (15.4 GiB usable)
Graphics Processor 1: Intel® UHD Graphics 630
Graphics Processor 2: Quadro P1000

ADDITIONAL INFORMATION
It happens regardless whether have window previews enabled or not.

If found this bug (https://bugs.kde.org/show_bug.cgi?id=483390) that is similar, but that one is about disappearing previews.