
Step 2: Setting VirtualBox VM to open in low resolution (don't worry, by low resolution I believe it just means lower than the Retina display resolution, not that its going to be in a terrible resolution once you set this, mine looks great). Once it's installed the features that are useful for the next steps are all automatically applied. It's pretty easy and there are tutorials on how to do this. Step 1: Install guest additions for VirtualBox. Posting because it took awhile searching through various forums how to speed VB up so I thought a consolidated post could help some other beginners out. VirtualBox seemed to run slow but I found the solution was actually to do with resolution. I'm using a Macbook Pro 16" and using VirtualBox 6.1 to run Ubuntu 20, I have installed Guest Additions on Ubuntu. Note: this is not a post about running MacOS on VirtualBox, but running VirtualBox on a Mac.
