I use KDE neon for a while, but have still my former distribution "Manjaro KDE" (Arch Kinux). Neo runs more smoothly and is more responsive. Applications start faster. But there is one thing that is unfortunately worse - at least on my Elitebook 8570p: the data troughput on the 2 USB3.0 interfaces is by far slower. Waht in Manjaro takes 1 Minute, it takes 10 Minutes in Neon.

Can you help me to investigate and fix it? How the meassure the USB troughput (for example copying from internal SSD to external SSD) ?

still no idea...?