Hello, I’m using KDE Plasma on Rock 5b, everything is fine, but since the last update, the desktop, window animations, and certain apps have slowed down.
Operating System: Ubuntu 24.04
KDE Plasma Version: 6.3.5
KDE Frameworks Version: 6.14.0
Qt Version: 6.8.3
Kernel Version: 6.15.0-rc1-edge-rockchip64 (64-bit)
Graphics Platform: Wayland
Processors: 4 × ARM Cortex-A5 5, 4 × ARM Cortex-A76
Memory: 15.4 Gio of RAM
Graphics Processor 1: Mali-G610
Graphics Processor 2: llvmpipe
Product Name: Radxa ROCK 5B
Hi! Are you able to check what software was updated, and through what method - command-line package manager, Discover, operating system update - in the last update that you mentioned?
Can you also please double-check if you’re running Ubuntu 24.04, or a modified distribution provided by another project? I’m just checking because Ubuntu 24.04 didn’t ship with Plasma 6 or Qt 6, and your device appears to be running not just version 6 of each, but unreleased versions of KDE software (see Schedules/Frameworks - KDE Community Wiki and Schedules/Plasma 6 - KDE Community Wiki) and the Linux kernel - so you might be among the first folks who are trying out some situations and encountering associated issues 
Hmm - given the platform that you’re running on, it’s a bit surprising that you’d get pushed onto what’s essentially the testing branch of KDE Neon.
If you’ve intentionally setup your system in such a way, then I guess that’d be expected - but if you’re not intending to test pre-release software, it might be worth checking with your distribution maintainers about how to get back onto a more regular release schedule?
Overall system performance issues could come from a variety of sources, but it might be worth double-checking that you’re on the intended release schedule first before diving too deep into diagnosing