^ I use a dual monitor setup. 1440p at 125% scaling (else its to small to read anything of the screen), and a 1080p at 100% scaling. most apps adjust to the scaling when I drag them over, but this GUI apparently doesn't. it indeed starts up with the 125% scaling which screws with the list view. at 100% scaling it visualizes as intended, but barely readable for me
Anyway, I've set the DPI scaling override in the Compatibility tab, to System (Enhanced) and that works as intended. Thanks for the tip.
As nobody else was reporting this, it had to be me. Forgot about the scaling I had set.