Norton could be the source of your slowness if it automatically tries to scan files that are accessed by Windows (i.e. when you open Chrome, it scans out Chrome for baddies). Superfetch is a Windows background process.
SSD or HDD, do you know?
I’m not sure, but it’s a laptop and when I bought it, it was with the understanding of for streaming and gaming, so I would assume SSD?
Also, I don’t think it’s Norton because I’ve tried disabling it and it still does it.