Cool!
"Default config" setups have always been TERRIBLE.
I once had a tweaked-out XP host that would launch a tweaked-out Win10 VM at startup.
The host-tweaked-XP *PLUS* the guest-tweaked-10 VM would load, on same exact hardware, FASTER than "default config" 10 would load by itself.
There are some INTENTIONAL startup delays built into default-config 10 (actually in everything higher than and including 8).
I have to assume the delay was designed-in for a "reason". We call things like that a "race condition" at work.
Shave roughly 5 to 10 seconds on your startup just by this alone.
https://www.eightforums.com/threads/startup-delay-time-reduce-in-windows-8.37373/