PhotoLibrary image browser gets very slow with more than 1000 images in a folder

I had to cull through 1273 photos today (I shoot wildlife and today was particularly good :slight_smile: ). Usually I end up with a few hundred photos in a single folder only and hadn’t noticed any issues before (I think the biggest folder before today had between 600 and 700 photos).
I have my filter set so that rejected images get filtered out, so that as soon as I reject them, they disappear from the image browser.
However, today there was a very noticeable delay between rejecting the image (by hitting 9) and the image disappearing from view. Sometimes 1 or 2 seconds, in at least one instance I even got the spinning rainbow mouse pointer.
I resorted to not filtering out the rejected images and instead do the tedious reject + cursor right method instead. While doing that, I also noticed that moving right at the end of a line (13 thumbnails in a line) to jump the first image of the next line also took longer than usual.

Anyways, maybe this could be improved in future versions.

PS: I consider this a performance bug of sorts, hence the bug tag.


PhotoLab is great for many things, but reviewing and culling images from a large shoot is not one of them. I suggest using a free tool like Faststone Image Viewer or Fastraw Viewer to cull out shots that don’t make the grade and then use PhotoLab once you’ve reduced the total number of shots to a manageable size.



Faststone is Windows.
I like FastRawViewer but you can’t look at photos side by side.
Update: FastRawViewer V2 can now compare photos 2 or 4 at a time.

I ended up getting Photo Mechanic Plus, using it to cull images while still on the card. And you can view images two at a time.

Thank you for the response, Mark.

PhotoLab does a perfectly adequate job for reviewing and culling images up to a certain number of images. Faststone seems to be Windows only, so not really an option on a Mac. I will have a look at Fastraw Viewer which does have a Mac version at least, but I wonder what else the pick and reject functions as well as the star ratings are for if not for culling images?

The odd thing is that the performance is fine for half the amount of images and at some point it becomes almost unusable. In other words, it’s not linear as it should be. On a Mac Mini with 64GB of RAM I’m certainly not running out of memory.

Personally, I use XnView(free) on Mac(m1) for everything that concerns sorting and renaming photos in numbers.

This is the point. The function is part of PhotoLab but has issues. Same story for keywords that I frequently take issue with and for which others suggest Photo Mechanic or similar.

PhotoLab, for better or worse, has a DAM. It has the same basic features that its competitors have. Either they should all be removed or some effort should be expended to make them better. I personally believe if they are removed PhotoLab will be a far less compelling product. If they were to see serious improvement (and there are many suggestions in these forums for what that means) I think it makes PhotoLab into a much better product.

I accept that the keyword functionality I wish for (equal to Lightroom Classic) does not simply fall under “improvement” (as many don’t need what I do), improved performance and ease of use, with a sprinkling of new capabilities, should, I think, be high on the priority list.

I opted for fastrawviewer on M1 pacbook pro which is very quick, cheap and very good (and customer support is first rate despite the low price). A key plus is the ability to see which shots were properly focused which, when culling large numbers of wildlife pics, is invaluable.

Dear Tom,
did you know if the comparing mode in V2 is also possible on one big screen, or only in the what they call multi window mode.

thanks a lot in advance


Do you mean full screen? I believe so. You can download a free trial and see if it works for you.


Yes you can hide all panels or go full screen and hide all panels.

Dear Mark, dear Tom

Perhaps my question was a little misleading, and yes I know about to download a trial, but at the moment it’s not so easy because I move to a new flat.
i will check it by myself next week, if all systems are running.