Lightroom Classic - Desktop LAG ... so much lag

And.... here we go again. Nearly IMPOSSIBLE to use Lightroom classic due to incredible lag

Program takes up to 2 MINUTES to load
Main screen and both side panels RELOAD on every adjustment. 
Right arrow through the filmstrip is nearly impossible... so much lag

WHAT IS GOING ON! Why does this keep happening? 
Up to Version 10, all was well. Massive lag on introduction of V. 11 and ever since. 

My system is built for Lightroom - like, specifically, as in using Adobe's specs for making Lightroom work, and nothing can combat the lag. 
My catalogue lives alone on a 2tb NVME
My images have their very own hard drive that is only 50 percent full. 

DEAR ADOBE. PLEASE fix this. 1000s of people are having this issue on all windows and mac environments, and even brand new, just out of the box power macs.