Why is my computer so slow (part 2)?

Ok you guys asked for more details so here we go...

-2019 Dell latitude 3400 (almost no files on it, just word documents)

-Windows 11

SSD

391GB free of 464GB on local C

95% memory under performance tab

-recycle bin emptied

-updates done

-there are close to zero documents on there, no pics, no videos, no porn

-restarted it

Turned off every conceivable useless app for start up

-more or less just has the necessary apps that came with it

Any other suggestions? I'm thinking of just throwing it the window to finally see it go fast. Time flies I didn't realize it was 2019... Is that too old?

Why is my computer so slow (part 2)?
Post Opinion