Heres a quick video on my new samsung 2tb t7 shield I was dealing with slow transfer speeds right out of the box tried different ports on my laptop both cables that were provided with the ssd downloaded a speed tester and came across the disk manager fix for it.
I hope this helps anyone who was just as much as excited as i was to use it and also just as disappointed as I was when I was when I started using it and began having the same issue
Let me know how youre enjoying your new investment.

link for crystaldiskmark
https://crystalmark.info/en/software/

Keep It Real!