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Very slow image resizing Photoshop v21.01

Explorer ,
Jan 20, 2020

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Something curious:  I updated to Photoshop v21.01, and now it's curiously slow resizing images.

 

Simply resizing a  4K (3840) image to  1K(1920) using basic bicubic resampling can take 10 seconds or more - Much more if I use a more expensize algorithm live preserve details 2 or have a lot of layers in my image.

 

What gives?  I have an absolute powerhouse computer and this action was almost instantaneous (except for very large files) in the last build of Photoshop.  What are you guys doing now during a resize?

 

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Very slow image resizing Photoshop v21.01

Explorer ,
Jan 20, 2020

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Something curious:  I updated to Photoshop v21.01, and now it's curiously slow resizing images.

 

Simply resizing a  4K (3840) image to  1K(1920) using basic bicubic resampling can take 10 seconds or more - Much more if I use a more expensize algorithm live preserve details 2 or have a lot of layers in my image.

 

What gives?  I have an absolute powerhouse computer and this action was almost instantaneous (except for very large files) in the last build of Photoshop.  What are you guys doing now during a resize?

 

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Jan 20, 2020 2
Adobe Employee ,
Jan 20, 2020

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Hi Christopher,

 

That does not sound good, as Photoshop is alow at resizing images, 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 preferences of Photoshop and let us know how it goes: https://helpx.adobe.com/photoshop/kb/optimize-photoshop-cc-performance.html

 

Also, please update Photoshop to version 21.0.2 via the Creative Cloud Desktop app and see if it helps.

 

Regards,
Sahil

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Jan 20, 2020 0
New Here ,
Jan 20, 2020

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I'm having the same problem - Legacy Compositing is selected. I can't get anything done. 

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Jan 20, 2020 0
Explorer ,
Jan 20, 2020

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I'll give that a try.  This is curious, since the last build was performing fine.

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Jan 20, 2020 0
New Here ,
Apr 16, 2020

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a similar problem here, although i've noticed that it's only my *first* resize that takes a while (~15 seconds). anything after that works as well as it did before the 2020 update. of course, once i close and restart photoshop, then i'm back to an initial wait for the first resize. is something not getting initialized when PS loads, maybe?

i've tried with legacy-compositing on and off, with no difference.

if i turn off 'use GPU' entirely, the problem goes away. if i just turn off the 'use openCL' option, the problem goes away. 

to reiterate - this all worked fine before version 21

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Apr 16, 2020 1
New Here ,
Jun 25, 2020

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Same problem here.

Legacy Composity worked fine and now the problem is gone, but...

Are you gonna fix the problem? If you worke to make a new Compo shouldn't it work better?

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Jun 25, 2020 0
New Here ,
May 06, 2020

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Same here, resizing is very slow...

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May 06, 2020 0
New Here ,
Jun 05, 2020

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I have the same/similar problem. Image resizing worked normally before last update, now it takes several seconds to "think" before it actually does anything.

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Jun 05, 2020 0
Will5C94 LATEST
New Here ,
Oct 17, 2020

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I have the same problem.  Started recently...but there is a lag of 10-15 seconds to resize, and sometimes it freezes up completely. 

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Oct 17, 2020 0