If you are running Autodesk Fusion 360 on some sort of Apple MacBook, by default it won’t automatically use an external GPU. The following steps will configure Fusion 360 to use the extra graphics power of your external GPU (NOTE: these steps need to be repeated with each Fusion software update).

OSX Screenshot showing how to find the shortcut in finder
Ctrl-Click the icon on the dock and select ‘Options’ then ‘Show in Finder’.
OSX Screenshot showing how to find the original executable for the shortcut
Ctrl-Click the icon in finder and select ‘Show Original’.
OSX Screenshot showing how to get the info for the executable
Ctrl-Click the icon and select ‘Get Info’
OSX Screenshot showing how enable the GPU for fusion 360
Check the box ‘Prefer External GPU’.

Start Autodesk Fusion 360.