Editor takes 4 - 5+ minutes to open (Windows 10)

I’ve recently started using UE4 again, but it’s difficult to stick with it and learn the software, as any time I try to open my project, it takes a very long time to open.

In my experience it takes “on average” 4 minutes to open a rather empty project and map.

I’d like to know if there’s something I can do to remedy this myself, because right now the startup time is unacceptable.