I have a 2019 iMac with the 21.5″ Retina display and a 1 TB Fusion Drive. It’s a 6-core monster and the slowest computer I’ve used in probably a decade. How do I make it suck less? The first step will ...

This doesn't quite cover everything. From the sound of it, I'm guessing that you can't use Fusion Drive on any partition that needs to be accessible from Windows. So if you want to access your ...