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mmackinven
Participant
January 10, 2018
Question

Photoshop CC 2018 (and 2019) extremely slow

  • January 10, 2018
  • 49 replies
  • 58148 views

Hey guys,

I have a 2017 27" iMac, specs:

4.2 GHz Intel Core i7

40 GB 2400 MHz DDR4 RAM

Radeon Pro 580 8 GB Graphics

This machine shouldn't break a sweat with Photoshop, however Photoshop is performing the worst I've ever encountered this example is only a 350mb Photoshop file, with about 56 layers (most flattened with a mask) in 20 groups and 5200x3500px.


• When using a brush or eraser tool, it lags so much that it takes nearly a minute to complete the stroke – then doesn't even follow the stroke I made!

• Zooming in nearly crashes the file.

• After about 5 mins of trying, PS just stalls and wont do anything. Open Force Quit Apps and it doesn;t show PS as not responding either.

I've tried using it with the 'Use Graphics Processor' unticked and it runs even worse!

30gb of RAM alocated to PS.

Using default History & Cache

Scratch disk has 1.2tb spare

I never use flick panning or scrubby zoom, or any of those kind of features.

Would this benefit if I got an external SSD to use as a scratch disk?

What is going on here?

    This topic has been closed for replies.

    49 replies

    Show previous replies
    jmvdigital
    jmvdigital
    Known Participant
    January 28, 2019

    Really really frustrated with Photoshop. I'm on CC 20.0.02 on Mac Mojave 10.14.2. Photoshop was running great all morning, I was totally shocked. Then without warning it went to total garbage. Ten second slow downs on every brush stroke, not responding to key commands, 15 seconds to hide/show a single layer... then it crashed. I ran Cocktail, restarted my machine... same performance. Total crap.

    Something caused it to run great for most of the day though. I wish I knew what. Nothing changed on my end when the performance changed. No other apps taking up resources (CPU or RAM).

    Martin-dualpixel
    Martin-dualpixel
    Participating Frequently
    January 28, 2019

    same here. very slow on mac os (with the latest update)!

    application-reset brings no improvement.

    PECourtejoie
    Community Expert
    PECourtejoieCommunity Expert
    Community Expert
    January 23, 2019

    Also, once one has reproducible steps, please create a descriptive thread (I.E. text, crop,etc. Slow on CC 2018 and 2019) on the https://feedback.photoshop.com site, that is the best venue to elevate problems, this very site here is more geared towards users helping each others.

      PECourtejoie
      Community Expert
      PECourtejoieCommunity Expert
      Community Expert
      January 22, 2019

      Hello

      For the users with the CC 2019 version, I encourage to update to 20.0.2, as I heard that other users with speed issues said that their problems were gone.

      madnessgraphicspoland
      madnessgraphicspoland
      Inspiring
      January 22, 2019

      I counted on it, unfortunately in my case nothing changed it. Just renew subscribtion for next year, and working on old software. (win10, 64bit, 24GB RAM, RAID, GTX1080, windows and drivers updated)

      PECourtejoie
      Community Expert
      PECourtejoieCommunity Expert
      Community Expert
      January 23, 2019

      madnessgraphics, could you make videos and time similar operations on similar files?

      Which operation is slower? Is it on GPU accelerated stuff or other functions?

      Making sure that settings are the same.

      C
      cyclopsdx
      Inspiring
      January 21, 2019

      So if we've all been forced to uninstall the latest versions because they don't function properly and we're working with older versions of the software, why are we paying a subscription for software we currently cannot use?

        madnessgraphicspoland
        madnessgraphicspoland
        Inspiring
        January 21, 2019

        They should introduce a new subscription model, e.g. a 2017 subscription, which would be cheaper every year without access to newer versions. I would like to accept it.

          C
          cyclopsdx
          Inspiring
          January 22, 2019

          I'd like to think we've already paid enough for previous versions through our monthly subscriptions - and we still are!

            N
            NewtonSystems
            Participant
            January 21, 2019

            I now downgraded to version 18 (CC2017) on Illustrator and Photoshop and all is well. Until someone (Adobe!) finds a solution for this, this is the way to go about it unfortunately.

              C
              cyclopsdx
              Inspiring
              January 17, 2019

              Very impressed by Adobe's response to this thread, btw. Great to see my subscription dollars at work.

                M
                mediaboy18
                Participant
                January 16, 2019

                I’m in the same boat! Photoshop CC on my 3.3ghz i7 with 16gb of ram iMac sucks!! It’s so laggy and takes minutes to even open.

                decoderltd
                decoderltd
                Participating Frequently
                January 15, 2019

                Having the same problem with Photoshop (20.0.2), it's taking ages to do the simplest of tasks. I'm running it on OS Mojave and an upgraded Mac Pro 5,1 - 2 x 3.46 GHz 6-Core Intel Xeon / Radeon RX 580 8192 MB, so it should be speeding along but it the worst performance I've ever experienced.

                Guess I'll trying installing the previous version, but this really isn't the kind of product we should be forced to work with. Many of us rely on these applications to make a living.

                  N
                  NewtonSystems
                  Participant
                  January 14, 2019

                  I also have the iMac with the Radeon Pro 580 8GB Video card. Upon opening of Photoshop I got a popup stating that "Photoshop had encountered a problem with the display driver".

                  Since then the app runs extremely slow and the fans come on on full blast.

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