Slow rendering of item after clicking on filmstrip thumbnail

[chrisb35753520]

Hello, I'm running lightroom classic on windows 11 pc with the i9-14900K Processor with a 4090 GPU and 64G of ram and lightroom runs soooooo slow.  like you click on a photo down below on the film strip area and it takes like 10 seconds or more to pull the photo.  The catalogue probably holds around 110,000 ish photos.  also making adjustments, there is a few second delay, for example, if you are raising or lowering exposure.  Another is exiting lightroom it takes a while for the pop up to appear to close out of the program.  anyone else experiencing this?  Thanks in advance!

[chrisb35753520]

I personally don't know a thing about Mac, so I am not of much help.  I did find that making exceptions for my antivirus for my photo drive and lightroom camera raw cache folder so it doesn't scan those (i don't use them for anything other than my personal photos) seemed to also help, i use Avast Antivirus, hopefully that might help if you are using some form of antivirus program.

[Jordan241321609y5b]

You have changed my life with this advice, thank you 

[erikas89609044]

I bought a new laptop last year and no longer keep any pictures stored on my computer, but save all on an external harddrive after culling and editing with lighroom.  Admitedly I do have the Canon R5 which has insane size files - but I still don't believe it's a computer or space issue because only LR Classic runs insanely slow and Photoshop works just fine.  LRC is impossible to use.  It's constantly freezing and takes hours to edit 1 photo.  Ridiculous for how much I pay per month for Creative Cloud.  Anyway, I wanted to try your solution, but my files appear differently, possibly becaues of creative cloud?  When I go to C:\Program files\Adobe then the folder is Creative Cloud and I dont see any folder for Lighroom Classic.  When I click properties for LRC, there is no "compatibility" tab in properties or advance properties (possibly because I can't find the .exe file?).  Do you have any suggestions for me?  While I'm capable of following step by step instructions or video tutorials, I am not that tech savvy to figure out how to trouble shoot this issue myself and appreciate any guidance.  

[Stefan34318240wmih]

I had this issue as well. If you're on Windows 11, `C:\Program Files\Adobe\Adobe Lightroom Classic` is the path you need to go to find the Lightroom.exe. When in `C:\Program Files\Adobe\Adobe Lightroom Classic` (you can enter this directly in Explorer), you can right-click Lightroom.exe and follow the steps in the answer.

@erikas89609044 

[zulucowboy]

Thank you. That has saved the little hair I have left. 

[vankhaivo]

Thank you for this solution. It helped me on Lr CC too, not only on Lr Classic. Thank you very much

[Andrew_Kennedy2078]

So I’m glad I found this. Quick answer: this worked for me. As a tech person myself, I was dumbfounded as to why the more powerful my PC was, the slower Lightroom and LRC became. I felt lost and often gave up, switching to other software. I tried a few things that helped for sure, but nothing came close to what this does.

To help answer some questions about why this works after understanding the reasons behind it:

Most people now have high-end monitors. Windows will change your DPI to 125% to 200% to help display your windows correctly. For example, my dual monitor setup consists of a main (1440p) and a secondary vertical monitor at 4K.

It seems like Lightroom and LRC try to overcompute whatever it is displaying, using what @chrisb35753520 suggested forces the software to default to the normal 100% DPI instead of Windows' scaling.

Hope this helps clarify why this is a significant issue.

My Specs:

3080ti

Ryzen 7 5800x

64 gigs RAM

So many SSDs/M.2s

[ndean66]

OMG chris35753520, I have been stuggling with this for almost 12 months. You are truly a lifsaver!