Do you actually need a Hypervisor? More specify are you running two or more operating systems at the same time?
If not, it will severely slow down your computer even when it's not in use. (For example, on bootup an os has to check all hardware even the virtual stuff, so it's always running and changing how you computer "sees" stuff.
Anyways, the Dell Optiplex 9010 actually has bios updates that actually supports NVMe and in some cases (depending on the drive) it's even bootable. You are the rare exception to the rule "never update your bios" because NVMe wasn't even a thing that existed when your pc was built.
Also, there are fake adaptors like this one: youtube
There is a lot more info here by people have accomplished this: Dell