m.2 at half speed

My main system components: Ryzen 1600 MSI B450 Tomahawk Max Rx 550 Western Digital 1TB HDD Samsung 980 1TB M.2 I just bought the Samsung 980 M.2 to speed things up and was shocked to see the read and write speeds at 1700 MB/s, instead of its rated 3500 MB/s. I checked Samsung Magician and saw...