Everything was fine, but every time I start the Bitcoin Core, it take a hell load of time until it starts downloading the blocks, even after I've finished the initial bootstrap, as if you are forcing a car to move after letting a few guys give it a push.
This is on the VM and the main PC (host).
It's normal if you either :
1. Store the blockchain files on HDD
2. The HDD also used to store guest or/and host OS
3. Use shared folder feature, which is known to be slow. Source :
https://superuser.com/q/1025864Have your tried giving less ram to your guest os, so there's more left for your host?
I'm not running the bitcoin core on the guest and host on the same time.