Turn off the GPU setting in LR. Enable the Pagefile in Windows. Windows does not like not having a Pagefile no matter how much RAM is installed. You can limit the PF to 1GB and place it on some other drive in your system but do not turn off the pagefile.
I suggest you get a larger SSD for the Boot/OS/System drive. Every program likes to place things on the Boot/OS/System drive usually in the Users\YourUserName folder.
Also IIRC All Adobe Apps don't really care for CPUs with more than 4 physical cores. I could be wrong about that but I think I read that someplace.
a) I will turn the paging file back on (I had it on a different SSD anyway) and give that a try
b) The OS SSD is 800GB (only about 300GB are currently used) so that doesn't seem to be a limit
c) I will try it with turning off the GPU
d) Bummer about only 4 cores. (understand there could be a thread limit issue in the app)
will update after trying
WOW ! turning off the GPU made a huge improvement ! Primarily in the Library module, and a slight improvement in the WEB module. Haven't tried importing yet.
WOW again ! start up times are greatly improved as well down to a few seconds vs about 30 before with just turning off the GPU. Memory and CPU utilization are still low, and clearly performance could be fairly dramatically improved if they could use memory rather than IO (even on my M.2 SSDs). Adobe clearly has work to do on the GPU front.....