P: Healing brush & clone stamp tools lagging

I had exactly the same problem for months. OS X 10.14.6 , Psp 20.0.6. Turning off rulers seems to work in my case, for now.... 

Hi Eduard,

The behaviour I described happens specifically when the rulers are showing, regardless if snapping is enabled or disabled.

If the options 'View > Snap' and/or 'View > Snap to' are ON, sometimes this can give some strange behavior ...

I'm on 20.0.6, Mac Pro, Wacom tablet.

For me the lagging clone stamp & healing brush manifests as a kind of an unwanted 'line' being cloned from where I sampled, to where I intended to clone to.. It doesn't feel slower, just wrong. It's also intermittent.

I've made a picture of this. I'm starting with a black square, and then cloning out of the black square, in a circular fashion. I'm doing a single click, no dragging.



When I switch off rulers it's fine.

Please can we have this issue fixed, would be nice to be able to use cloning tools and have the rulers on again.

Hi Carlos!

I am glad that you were finally able to solve the problem with my hint!
I soon realized that the problem was not with Photoshop itself ...
It was rather a matter of logical deduction and continuing to search. 🙂

Hi Eduard:

Since I posted this a couple of hours ago, this is how I got it back to functioning normally.  To recap - I was having the problem with PS 2017, and it followed when I upgraded to 2019, 20.0.6.  Here's what I did.

- Uninstalled 2019, retaining preferences.
- Uninstalled 2017, retaining preferences.
- Reinstalled 2017.

After the 2017 reinstall, I noticed the overall performance (navigation, scrolling, etc.) improved.  Perhaps there's some cache that was cleared by the uninstall.  I couldn't find anything to clear when browsing.  Still baffling...

Hi Carlos J
Having read all of this thread about the problems people have had I found turning off the rulers and following Eduard Clé 's suggestion re my anti-virus program.  I am running Norton Anti virus and I can set it so it does not scan photoshop and that worked  - thank you Eduard Clé !.  I have also reported this to Adobe who I believe are looking at it.  I am running 2019 CC but have had the problem for ages - but as it only starts to show up after you have been working for a while I thought I just needed to restart PS.

Interestingly, I ran into this problem with Photoshop CC 2017 yesterday.  It just magically started happening.  I've read and tried a lot of the solutions in a few forums, but nothing works.  I upgraded to 20.0.6 and still have the problem.

The size of the photo doesn't matter.

So maybe it's not a 2019 version problem(?).  

My work has ground to just about a complete halt because of this.

@12673783: i leave it as it is. 
tried disable it, nothing changes.

What is your spacing in brush settings?