Western Digital WD BLACK SN750 Very Slow

These are the speeds I am getting. Why are they so low compared to everyone else at 3000 MB/s


CrystalDiskMark 7.0.0 x64 © 2007-2019 hiyohiyo
Crystal Dew World: https://crystalmark.info/

  • MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
  • KB = 1000 bytes, KiB = 1024 bytes

[Read]
Sequential 1MiB (Q= 8, T= 1): 834.085 MB/s [ 795.4 IOPS] < 9992.38 us>
Sequential 1MiB (Q= 1, T= 1): 718.743 MB/s [ 685.4 IOPS] < 1457.50 us>
Random 4KiB (Q= 32, T=16): 814.565 MB/s [ 198868.4 IOPS] < 2559.96 us>
Random 4KiB (Q= 1, T= 1): 50.805 MB/s [ 12403.6 IOPS] < 80.42 us>

[Write]
Sequential 1MiB (Q= 8, T= 1): 829.149 MB/s [ 790.7 IOPS] < 10059.44 us>
Sequential 1MiB (Q= 1, T= 1): 769.809 MB/s [ 734.1 IOPS] < 1360.93 us>
Random 4KiB (Q= 32, T=16): 805.084 MB/s [ 196553.7 IOPS] < 2586.72 us>
Random 4KiB (Q= 1, T= 1): 155.175 MB/s [ 37884.5 IOPS] < 26.20 us>

Profile: Default
Test: 1 GiB (x5) [Interval: 5 sec] <DefaultAffinity=DISABLED>
Date: 2020/09/30 8:35:12
OS: Windows 10 Professional [10.0 Build 19041] (x64)