Photoshop screen drawing slows down drastically after a while in High Sierra, making it unusable

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  • Problem
  • Updated 6 months ago
After a reboot, PS works OK for a while. From maybe 15 minutes to one hour. Then everything starts to slow down and after a while simply enabling/disabling layer visibility can take 10 seconds. I can see the screen slowly being drawn one block at a time.

This started happening immediately after High Sierra upgrade. I have a MacBook Pro with SSD, so it is now running APFS and PS also doesn't show my boot volume at all in the Scratch disk configuration. Because of this, I made a new HFS partition and moved Scratch there, but this didn't help.

This is now severely affecting my ability to do work. I have to reboot about every half an hour. Please fix it.

(Running PS CC 2017.1.1.)

Photo of harri


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Posted 6 months ago

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Photo of Patrick


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Same problem here.

Changing/editing any layer or changing visibility of layers. Moving to a different layer comp. When doing this it doesn't update the screen.

Workaround: change zoom level to redraw the screen.