Why is this being downvoted?
KDE
KDE is an international technology team creating user-friendly free and open source software for desktop and portable computing. KDE’s software runs on GNU/Linux, BSD and other operating systems, including Windows.
Plasma 6 Bugs
If you encounter a bug, proceed to https://bugs.kde.org/, check whether it has been reported.
If it hasn't, report it yourself.
PLEASE THINK CAREFULLY BEFORE POSTING HERE.
Developers do not look for reports on social media, so they will not see it and all it does is clutter up the feed.
Not sure, but the tldr is try using a faster drive for you cache folder.
If I had to guess, it's because it's a click bait headline that offers nothing useful to people until they've committed to watching a video
Which part of the title is clickbait?
Everything. It doesn't accurately describe the issue (animation stutter when using an HDD or during heavy I/O) and it doesn't mention the solution (put the cache folder in tmpfs), plus it obviously follows the traditional sensationalist tone used in clickbait.
The point is to be deliberately vague to bait people into watching it.