I'm working with some Win Server 2019 VMs and an app that is, I think, hard drive I/O intensive. Most everything you do it's reading and writing multiple sets of data/files in an SQL database.

I've seen it run in some demos and it's a bit faster than when I run it. Is there anything that can be done to up the performance on the VMs?

In the demos they were running on Hyper-V on a contemporary Intel NUC, nothing fancy. I just finished a new build at the end of the year with a AMD 5950x, WD NS850 SSD and a RTX 3080. Whenever I upgrade I end up testing Workstation Unity mode and this is the first build were it's very usable. Still, the app in the VM is slow to respond.

Does Hyper-V have a performance edge on Workstation 15? I've given the VM 4 cores and 12GB of RAM and the VM files are on a data drive that is not booting the OS.