Dell Precision 7730 with very slow USB ports

I ordered a 7730 with a 512gb and 1tb NVME drives. After setting it up, I went to load my files onto the 1TB D drive from my 2TB Passport. It took 4 hours to copy the contents onto the nvme which was twice as long as it took to write those files from my mechanical HDD. The progress bar showed an average speed of 35mb/s. When I copied those files from my desktop onto that USB drive, the average speed was 95mb/s. The new laptop has the latest firmware and drivers so I was sure something is wrong with the hardware. After doing some speed tests on the nvme drives, I noticed that 1 was 600mb/s while the other was 1.2tb/s. Dell sent me another computer which I got today. The nvme drives are now both fast at 1.2tb but the USB problem is still there. I have a 3 year old laptop and a 7 year old desktop. Both running win10 and both have a much faster read and write speed than this new mobile workstation that has gotten great speed reviews. I haven't found anything on google relating to this USB speed issue and wonder what other owners are seeing. I rely on USB for my weekly backups and this sluggish speed is a major concern.

If you had this problem and resolved it, please let me know what you did. Dell hasn't helped much other than by doing a system replacement.

Thanks

 

Any speed issues writing files to the external drive? Have you tried different USB ports? Any other USB devices you can try to write/read from?