Scarily slow transfer speeds

[jgeorge1983]

I have a F6-242(F/w 6.0.507) and transfer speeds are hitting mb/s, 1.5
The OS is running on a 1tb SSD NVMe - fanxiang 1TB PCIe NVMe SSD Gen 4 Gaming SSD M.2 2280
I have a TRAID running 4x8tb drives - Seagate 8TB Barracuda SATA 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive (ST8000DM004)

When I check the system monitor:
Overall Running Slowly, l0ad 75%
CPU 1-2%
memory 14%

I am not running any applications currently,

Transferring from one NAS to another, both with 1gig ports, running through a 1gig switch.

Any thoughts on why the load is showing slow, and why the transfer speed is so slow?

[Gremlin]

I don't know, but this might be a clue:

FANXIANG 2280 NVMe SSD S500PRO 1 TB Not Recommended

[jgeorge1983]

I did not even see that, I have just bought two SanDisk Extreme PRO 500 GB, I couldn’t find the SanDisk Ultra M.2 NVMe 3D SSD. but hopefully this will provide better experience.