Hello.
From my experience the warning you get is always presented in virtual environments, because VM does not emulate OpenGL capabilities in full scale.
Please note: if product can't detect necessary OpenGL capablities, they will be emulated by CPU, and it may result into high CPU consumption (even when configuration is small, and no "heavy" analytics involved).
Black screen after enabling VM hardware acceleration is another question, but I can't offer a quick answer here.
Please open an issue at technical support portal if you need it to be explored.
https://help.axxonsoft.com/jira/servicedesk/customer/portals