Factory IO is so slowly in my Virtuell Box and use 90% of my CPU


i have a Problem to install the tool factory IO. i use now just the free version for 30 days.

I have installed the program on my virtual box ( 5 CPUs [2.7 Ghz] intel i7-6xx , 20 GB RAM) .
the 3D option is activated on my VM but sadly it still so slowly and in task manager CPU 90% used .
My DirectX - Version : DirectX 12 .
All three setups are on WIN10 (64Bit versions).

I checked the system requirements on the Homepage and see, that I only need lower hardware as I have.

Can you help me?

Best regards