For several days I had been experiencing slow performance with Lightroom Classic. I actually noticed it after their latest update. With all the incorporation of AI that Adobe is inserting this undoubtedly has a performance impact. The past few days I noticed that when attempting to apply a mask that has "Select people", Lightroom begins the process but then seems to hang. I let Lightroom sit overnight just to see if it would ever complete but it did not. Task manager was showing low to no CPU utilization by Lightroom. Also, the only way to exit Lightroom was to terminate it in the task manager. However, sometimes this was even a problem as Lightroom would not appear in the Windows task manager. I had to use another application, "Process Lasso", to find Lightroom and terminate it.

The system is healthy and powerful enough consisting of a 6-core Xeon processor (twelve threads), 128GB of RAM, NVMe SSDs, and an Nvidia RTX Quadro 5000 GPU. This is a Lenovo Thnikpad P-73 Laptop Workstation.

Lightroom is set to use the GPU for hardware acceleration. However, this was not helping either. A re-install of Lightroom did not solve the problem and I also confirmed that it has nothing to do with the catalog size by using one of Scott Kelby's catalogs with about seven photos in it---the issue persisted.

Final fix was to go into the Nvidia control panel and switch the GPU from "Dedicated to graphics tasks" to "Use for grahics and compute needs" under "Manage GPU Utilization". With this setting, Lightroom performs as expected and considerably faster. Even the less intensive tasks fly through impressively fast.

The GPU does run hotter (the fan is constantly running faster). Impacts to other applications have yet to be determined definitively but, thus far, it does not seem to cause any issues. Some performance improvements have been observed and even various graphics heavy applications appear to work well, if not better. Some games do seem to struggle at times but this experience is yet to be fully confirmed.

Aside from this change, I will be contacting Adobe and providing this experience to them for analysis and comment.


Sincerely,

C. R. Smith
Angel Star Photography
www.angelstarphotography.com

That mixture of a static situation having visual potential plus waiting upon some semi-reliable serendipity is a great "hybrid" approach. You get to pre-select the setting for your "decisive moment" ... and often the human element isnt actually "decisive" but simply a visual boost to a more interesting presentation of the scene.

Three examples below, of "fishing" for humans in visually promising settings which were each in need of the extra spark of human presence, followed by the same three scenes but without that extra spark.

Many here are losing track that the issue is Adobe LR specific. That was a known issue. It was finally corrected when PS CC came out.

Come to think of it, you must recall the Adobe was initially only available on Mac/Apple. The transition to Windows did not go smoothly (hence blaming MS for some of the issues).

Most, if not all other programs, scale correctly. CTRL-+/-/0 address text display and sometime images, not always. It does not address the program interface.

The only solution is to use Adobe scaling in preferences. As I mentioned, this could get some strange result as it was far from being consistent.

The best solution anyway is to upgrade to the newer standalone LrC. If the op already has this version, refer to my initial post in this thread.

We are 120v, as is Canada and Mexico.

Basically only consumer things that are 240V are clothes dryers, electric ovens, house air conditioners, electric heating systems, and maybe a few other large power things.
TVs, radios, computers, coffee grinders, electric frying pans, window air conditioners, drills, circular saws, hair dryers, and all the other small daily stuff is 120V.

But the houses (buildings) have two legs of 120V AC, 180° out of phase with each other. Either leg (A or B) to Neutral is 120V.
Leg A to leg B is 240V. For even power loading (distribution), half of the house wiring (outlets, lights) is on one leg, the other half on the other leg. (Circuit breaker panel rows are wired A-B-A-B-A-B-A... that way it's easy for a double breaker to supply the 240 when needed.)

Better generators will have the two phase outputs instead of single phase (one leg).

A DSLR is simply older technology. Not sure we need to argue about it. One of the best of which and I think (not sure if it's actually still in production the Canon 1DX...?) But for good reason the production companies have stopped making DSLRs because they can do so much more without 'Mirrors'. Also my current 'Mirrorless' camera had an add-on 'Viewfinder', but I found myself quickly adapting to not ever using it. I was used to using the 'Viewfinder' from my DSLR days, but with the higher tech of the rear-display and even when manual focusing at 5x or 10x... I just find no need to use it.
Of course I'm sure it's already been mentioned that 'Mirrorless' numbers are just better in every way and can get better. The proposed Canon R5 Mark II coming out soon, I just drool over.

This isn't like moving from Records to CDs, and now LPs are experiencing a resurgence. Or a better example of those who love using their 'Film' cameras? What I'm saying is I don't think DSLR compares to that experience. Isn't the experience closer to the guy who simply upgrades his tablet or PC computer?

Holding onto the idea that your old-DSLR tech is good enough, and it may be for you. But take it for what it is. Old-tech. Some of us are very happy that the world has moved on.

I have a lot of pictures from my old DSLR camera. A Rebel SL1. But they don't compare to the resolution or quality I get from my Mirrorless. And I hope to upgrade again. I want that R5. Probably won't end up with Mark II though.