In
Post #54 and
Post #72 I noted that my system boots Catalina 10.15.5 slower from my NVMe SSD than it does from my SATA6 SSD. I found two threads (
here and
here) that discuss NVMe SSD Controllers detected as "Generic SSD Controller" instead of "Apple SSD Controller."
As shown in the attached screenshot, both of my NVMeExpress SSD Controllers are detected as Generic. Both NVMe SSD Controllers are reported as "Link Width: x4" and "Link Speed: 8.0 GT/s" with Trim Support.
Could it be that the performance issue is simply because they are detected as Generic SSD Controllers and not Apple SSD Controllers?