Issue:
When switching the Edit window to a separate window (undocked), redraw rate gets notably sluggish when selecting audio.
See attached video: https://youtu.be/izmK7pG2Rns
My specs as of this report:
HALion version: 6.3.0
OS: Windows 10 Pro 1903, OS version 18362.356
CPU: Intel Core i7 8700K Processor
Graphics Card: EVGA GeForce GTX 1080 Ti FTW3
Sound Card: RME HDSPe AIO (buffer setting: 64)
RAM: 16 GB
Display: ASUS ROG Swift PG258Q 25’’ 240Hz 1ms G-SYNC monitor
1 month later: Here’s a constructively intended complaint. This forum has me confused in the sense that I’m left hanging here with a bug report that I don’t even know whether concerned people have read… Is this the proper channel to report bugs? Are there only users who read this forum?
At least, I’d like to know if someone else experiences this same bug (see video), or is it just me? The bug is very annoying since I want to have the sample editor in fullscreen to be able to see better. Alas, the time selection redraw rate is really unacceptable.
Steinberg or anyone, please show some life signs. 
(Love your products anyway.)