I do not think your problem is in Photoshop CC 2017 unless it is in Photoshop Mac code. It may also related to your Hardware or software mixture. I just open 30 jpeg on my windows 10 machine and had no problem. I did not open 100 that would take some time.
I had no problem switching between the 30 open files. Would not know how to work with 100 open documents.....
Here is what 100 open in tabs look like I could switch between image but not quickly for Photoshop scrolls the list one line at a time.
Thank you JJMack for the quick reply!
Could you please try to use a bigger brush (something like 3000px or more) on a simple mask on the last photo opened (30 documents are enough, I have problems with less) and check the performance?
Something like the attached screenshot.
I agree that probably is an hardware problem but I cannot understand why before the upgrade Photoshop worked well. I thought it would be a settings problem..
1 person found this helpful
It is not a brush size problem. 3000px is larger then the image files I have opened. They are from my old Oly E-10 and E-20 when I shot jpeg. 4 or 5MP images. I was not about to open 100 16MP Raw files from my Cannon 1D Mk4. You have a pronle,m the is related to you configuration or Photoshop Mac code. Here a click of a 3001 soft brush on the layer mask. How big are your image files it you need to use a 3000+ px Brush If you open 100 GigaPixel images you could be over taxing you machine resources.
If I open a new document 700000x700000 px add noise and use surface blur. I see surface blur running at 97% CPU on my 24 thread and see Photoshop allocate 35+GB of RAM I allow it to use of the 40GB of RAM installed. My machins has two slow 2GHz 6 Core Xeons Processors.
I found a colleague who has my same machine but with a different graphic card (NVIDIA Geforce GFX 680MX 2048Mb) and he has no problems opening 100 photos with 5000px of larger side and brushing with a 3200px brush.
So it's probably my graphic card that don't works properly... I haven't found any upgraded drivers so I have a problem but not with Photoshop.
Thank you so much for the help!!