Ok so I went for the following setup.
NVMe partitioned for OS and programs. And on the second partition sound libraries. As I wont be installing all of my libraries 500GB is justbabout enough.
Then the SSD partitioned into 4 parts.
1 current projects.
2 projects.
3 storage.
4 backup.
The laptop was taking around a minute or so to start previously now its logged in including inputting password in around 10 seconds.
So far so good.