Lightroom Classic: Add the possibility to disable full image preset preview

My thoughts EXACTLY!

IIRC, when Adobe released first improved 7.x version they said that they worked with Intel on optimizing multi-threading in LR. There's also Intel Thread Building Blocks  (TBB) library dll in the main LR folder. So yeah, it looks like it may better optimized for Intel, which is sad, considering how good Ryzen/Threadripper platforms are. This is the last thing that keeps me from upgrading current i7-3770 setup to the new Ryzen 2000 platform instead of Intel's last-gen offering.

IIRC, when they released first improved 7.x version they said that they worked with Intel on optimizing multithreading in LR. There's also Intel Thread Building Blocks  (TBB) library dll in the main LR folder. So yeah, it looks like it's better optimized for Intel, which is sad, considering how good Ryzen/Threadripper platforms are. This is the last thing that keeps me from upgrading current i7-3770 setup to the new Ryzen 2000 platform instead of Intel's last-gen offering.

>> Please make some checkbox in settings to turn it off.

Not in settings, Stanislav. The ON/OFF button must be directly accessible during the browsing operations. For example, as you described, one may want to do a quick browsing through a lot of preset folders (groups ?) with full live preview disabled and then activate it when selecting a preset in a specific group.

I think the best place for this button is in the toolbar under the viewing area, along with the other tools.

NB : There's another related problem with preset previewing that I commented elsewhere. I just noticed something that I consider as a bug : when hovering the presets, I observed that some of them had absolutely no effect. Very strange. Until I understood that if the settings modified by the preset are located in a development panel that is disabled (switch button set to Off), the live preview doesn't take these settings into account.

This is questionable. The live preview should show the full effect of the preset by temporarily re-enabling the setting panels that are switched off. Otherwise, this doesn't make much sense.

In other words, new feature not tested by someone using LR for real work.

"if the settings modified by the preset are located in a development panel that is disabled (switch button set to Off), the live preview doesn't take these settings into account."

Have you posted this as a separate bug report?  Adobe almost certainly won't see or act on it unless it's a separate bug report.

Rikk Flohr, official rep, apparently reported this issue to the development team.

https://feedback.photoshop.com/photoshop_family/topics/lr-7-3-1-often-not-updating-rendering-in-full...

It hasn't been posted as a bug, John - rather I have asked the team to provide feedback on expected behavior to determine if this falls into the realm of bug or behavior change. 

It's hard for users to provide their opinions about the expected behavior without a separate topic.  It is certainly "unusual" that the preview resulting from hovering would be significantly different from the result of actually applying the preset.

OK. I will open a new thread.

I would argue that it's a bug on some machines rather than an behavior change.  If the intent was to update the loupe image ONLY WHILE hovering over an image that's not what is happening for many people.  Personally I'm experiencing changes to the main image WITHOUT even hovering over the left panel.  The image will suddenly change to B&W or some bizarre flat image while using tools on the right side.  I have to either click on another image and back OR toggle into fullscreen "F" and back to revert back for an unexpected update to the main image to go away!  

I've been waiting desperately for a fix to the point of NOT bothering to process images until a solution is in place.  That's not fair when I'm paying monthly for a service that I can't reasonably use.  As for the reverting to a previous version?  That was not an option on my laptop that is still running Windows 7 and will NOT support windows 10 despite all of Microsoft's promises as well.  (Runs for about 1 month then always gets the blue screen every time I've installed Windows 10).  I Purchased new laptops on 3 separate occasions (all Windows 10) just to find they could not run Adobe LR without painful lags and finally resold or returned them.  Each machine I tried had an i5 or i7 processor and at least 16Gb RAM.  The performance was worse than on my current Toshiba Satellite P855 windows 7 i5 with 8Gb.  The performance to run LR just sucks on windows 10 vs 7.  And the three new laptops were $1,200 to $1,500 brand new Dell and Lenovo machines.  Why would performance be worse on several new Windows 10 machines than on an old Windows 7 machine anyway? 

Windows 7 meets the system requirements per the Adobe website (may 24th 2018 specs.) however Creative Cloud will not revert back a version unless Windows 10 is being used?  Why is that?

Adobe should be investing more time into efficiency to run on middle ware machines than bells and whistles that decrease performance and efficiency. 

I am really so tempted to scrap all future use of Adobe products and move onto something more reliable. 

Adobe LR should NOT take so many resources that a new laptop with a new processor and 16Gb of ram can not run efficiently. 

If cutting edge machines are what Adobe is interested in targeting, maybe they should create a LR Premium line and stop KILLING an crippling a huge portion of their customer base!