CC 2021 - Gulp

Hello
I have a brand new HP Z2 G5 SFF workstation, Windows 10 64bit - this computer is dedicated to only using Adobe CC 2021. That's why I invested in this machine.

Intel(R) Xeon(R) W-1250 CPU @ 3.30GHz 3.31 GHz and 80.0 GB (79.8 GB usable)

All the Premiere Pro work is with .mov films. Most of the films are 15 minute interviews. I do a modest color correction - and the video is ready to be exported. Not so easy though....

I have read many articles on how to make Premiere Pro run faster. Even after apply the suggestions from the many articles nothing improves what I do on the timeline. All the articles I read suggest the same tweaks.

To define PP as slow is an understatement. It is barely breathing life into the workflow as I struggle to work with the film.

I am writing this note because I am unable to work. PP is so slow that it is crawls to almost to a dead crawl!

The only reason I upgraded to Adobe CC is because of the need to use Lumetri. At least with Adobe Creative Suite CS6 there was never any issues.

I write this because I am rendering a 14 film - and the render time shows 40 minutes to go. In CS 6 a rendering would take a few minutes....

This is a brand new HP with 80 GB memory and two SSD cards - that I am using to develop a PPro edit. 
What's to do?