Slow Loading Times Upon Profile Interaction(s)

What game is it? If I were to take a guess, it'd be Forza Horizon 4... I had a similar issue. The initial loading screen took a very long time for me, the first time. It's still slow, but loads. I would recommend opening it up and letting it load.
I got an error message the first time about it not being able to sync the profile, but upon loading up the world, it had my info and progress.

If it's hot FH4, let us know and we can investigate further.

Yeah even though I closed all the games since I did it so fast I think all of the graphics that have to load in upon entering a game didn’t have time to deactivate leading to slow down and eventual freezing.

I do one more test. I let loading Prize History for long time (2-3 hours), and when I come back, the history is on screen. So prize history only loads very slow. My internet connection is fast (20 MB/s).

Expansion cards are available for external storage that will work with Series S/X games. Regular external drives would be too slow so in order for them to fix it, you'd be looking at longer load times and downgraded performance.

Greasemonkey scripts will always slow loading times as it has to wait for the page to load and then load the javascript to make any changes.

Stylish scripts wont slow loading times at all because they are purely CSS, but unfortunately CSS is limited in what it can do regarding functionality.