P3: Somewhat important
Operating System: openSUSE Tumbleweed 20200826
KDE Plasma Version: 5.19.4
KDE Frameworks Version: 5.73.0
Qt Version: 5.15.0
Kernel Version: 5.8.2-1-default
OS Type: 64-bit
Processors: 12 × AMD Ryzen 5 2600 Six-Core Processor
Memory: 15,6 GiB of RAM
Copying files from faster drives to slower ones, maxes out their throughput and causes Dolphin to crash if you try to browse folders on the slower drive.
STEPS TO REPRODUCE
1. Copy something from a faster drive to a slower
2. Try to browse folders on the slower drive
Dolphin remains usable
Copying from an SSD or 3.0 USB to HDD causes a crash, however copying from 2.0 USB to HDD doesn't.
Both the SSD and the USB remain usable during copying, but browsing the HDD crashes