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Photoshop 2020 slow performance on macOS Mojave

New Here ,
Nov 27, 2019 Nov 27, 2019

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I just upgraded my photoshop and it looks very slow and heavy for the System. 
had someone found and solved this kind of problem.

The same happened for illustrator.

I work with a macbook pro

macOS Mojave

2,9Ghz core I7 

16 gb ram lpddr3

Radeon pro 560 

 

{Thread renamed by moderator}

 

Thanks to everyone. 

 

.r.

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Mac, Performance

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correct answers 1 Correct answer

Adobe Employee , Nov 27, 2019 Nov 27, 2019
Hi there, That does not sound good, as Photoshop is performaing slow, could you please try enabling "Legacy compositing" located in Photoshop's Preferences > Performance, then relaunch Photoshop and let us know if it helps? You may also try optimizing the performance of Photoshop by following the steps mentioned here: https://helpx.adobe.com/photoshop/kb/optimize-photoshop-cc-performance.html Regards, Sahil

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Adobe Community Professional ,
Nov 27, 2019 Nov 27, 2019

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You have more than enough machine to handle Photoshop. What is the problem?

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Adobe Employee ,
Nov 27, 2019 Nov 27, 2019

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Hi there,

That does not sound good, as Photoshop is performaing slow, could you please try enabling "Legacy compositing" located in Photoshop's Preferences > Performance, then relaunch Photoshop and let us know if it helps?

 

You may also try optimizing the performance of Photoshop by following the steps mentioned here: https://helpx.adobe.com/photoshop/kb/optimize-photoshop-cc-performance.html

 

Regards,
Sahil

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New Here ,
Dec 05, 2019 Dec 05, 2019

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Hi, Photoshop CC20 and Bridge 20 are ridiculously slow (taking 15-20 seconds just to rename a file!) on my mac pro which has 48gb Ram, I've just gone back to CC19 on PS and Bridge and everything is fine. There clearly is a problem

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Explorer ,
Dec 15, 2019 Dec 15, 2019

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Just posted a thread about this very same thing! Upgraded the workstation to a 24 core, 64gb of ram, ssd drives and 11gb of vram and photoshop literally stutters. There's something going on with the software!

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New Here ,
Apr 10, 2020 Apr 10, 2020

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Hi Sahil,
I had exactly the same problem and your tip solved it in 5 seconds !!

What was wrong with this update ?

Thank you very much.

Regards,

Cyril.

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New Here ,
Oct 04, 2020 Oct 04, 2020

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I have also the same problem. It is HUGE difference on Mojave. And "Legacy compositing" is not the solution.
Time lapse video from 793 jpeg images at ~1,7 mb each

Mac Pro (Late 2013) on macOS Catalina 10.15.7 , 3,5 GHz 6-Core Intel Xeon E5, 32 GB 1866 MHz DDR3, AMD FirePro D700 6 GB

It takes about 3 minutes 40 seconds


Mac Pro (Mid 2010) on BootCamp Windows 10, 2 x 3,33 GHz 6-Core Intel Xeon, 48 GB 1333 MHz DDR3, Radeon VII 16 GB

It takes also about 3 minutes 40 seconds

 

On same machine on Mac side on macOS Mojave 10.14.6 ,  it takes A WHOPPING OVER 9 minutes 25 seconds

With "Legacy compositing" it takes about 8 minutes 50 seconds.

This is UNACCEPTABLE!

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