Photoshop CC: Hangs at 83% when saving

I found the cause! It's the use of Smart Filters not Smart Objects. The more filters you have within your PSD, the longer it'll hang on 83%

I saved a file with a lot of Smart Objects with no slow down, once I applied a Filter to those objects I got the 83% slow down.

Any update on this? I am on CC 2017 and the saving times are killing me. It's a 3/1 ratio of wait to work for me. Is there any option besides applying the smart filters as the last thing?

Maybe an option that checks whether an object that has a filter applied to it has been changed since the last save? Just a suggestion.

FWIW - When you add a smart object, you add the weight of the embedded file plus a full composite of the transformed, placed smart object. When you apply a smart filter, Photoshop stores another new, separate composite view, so it doesn't surprise me that the save time increases, as you're adding about 30% more data with a composite of the smart filtered results. (I'm testing it now to see if anything is out of whack with this fact in mind)

So I did a little test on an 8-bit, RGB image that is 20,000px x 13,000px (PSB format) 

21 seconds two smart objects 
24 seconds Media smart filter applied to one layer (1 extra composite)
28 seconds Gaussian blur smart filter applied to the other layer (in addition to the median smart filter above) (2 extra composites)

I disabled compression of PSD and PSB in preferences (which is lossless compression on the composite layers) and re-timed the save:

16 seconds two smart objects 
17 seconds Media smart filter applied to one layer (1 extra composite)
18 seconds Gaussian blur smart filter applied to the other layer (in addition to the median smart filter above) (2 extra composites)

I do see it stay on 83% slightly longer than the other percentages but I suspect that's perception/red herring. Most of the time is spent on compressing these extra composite views of the filtered results - and it doesn't seem out of line for what's going on within the document.

> I do see it stay on 83% slightly longer than the other percentages but I suspect that's perception/red herring.>

I've seen the status bar hang at various numbers frequently. 83% is probably the most common, but I've seen it hang in the 70s and even at 95%. Since the only time it really takes longer appearing to do nothing, is when I'm saving a large, highly complex PNG file with plenty of fuzzy transparency, when it can hang at any percentage above 60% for quite a while— and is even worse when it's an edited Smart Object having to be saved back into the document— I've thought it was simply the status bar not giving us a very accurate picture. Most never do.

At least for me, it takes about the same amount of time each time for a comparable save no matter what the status bar says—shorter if it's a solid single image layer—longer if there's transparency and/or it's a Smart Object edit that has to preview.