According to this wiki howto-virtualbox-installation-usb- I should enable EFI for Manjaro guests. So I did this, but I did this after creating the VM.
On boot now, with EFI enabled, I’m taken to a UEFI terminal window with a prompt.
What can I do here? Is it possible to enable EFI after creating the VM?
I find the VM runs very slowly. Could this be why?