Did a Windows Performance Toolkit recording w. these settings (picture below).
The result is three Trace Files of a whopping 5.1-5.3 GB size.
Now how to interpret is the next Q - your help is much...

Thx. Megahertz.
All of the actions suggested have already been implemented,
Sadly to no avail.

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Boot time:
Coldboot from push on Power button to lock screen appearing...

I clean up regularly and there's 482 GB of free space outta the total of 1T on the system C drive (NVMe) ... will that cause such problems, you think?

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Thx for you help,...

Help needed pls.:
Very slow boot times (7-8 mins.!).
Furthermore slow access to disk management and drive properties of all (SSD) drives, USB media etc.
Also very slow start when copying/moving...

Hi Jimbo,
Considering a similar solution for my scanner and USB-soundcard (both unsupported in Win10).
So you can actually install drivers for older OS to run (i.e. older) external hardware in VM...