Photoshop CC2015 & CS6 lag - just started happening

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  • Updated 2 years ago
  • (Edited)

I have a new lag issues in Photoshop CC
2015 & CS6 on Win 10. CS5 is running fine with no issues. I'm
pretty sure this is not a resource issue. I've been using the same system for 3 years. It is an intel i7 4core / 8 thread processor, 12GB RAM, Radeon 6450 / 1GB graphics. Up until a few days ago it ran lightning fast in Photoshop with no issues.

I am not a Photoshop or Windows novice by any means and I have done a lot of troubleshooting over the last couple of days but I can't seem to fix this issue. I am at the point now where the only thing I can think to try is a hard drive format and OS re-install. I hate to do that because the system came with Win 7 and was upgraded to Win 10. I don't know if it will even allow me to update to Win 10 for free again if I reinstall Win 7 (yes, I should have cloned the HD after the Win 10 install). I also don't want to spend all the time re-installing and updating everything.

I'm hoping soemone has some suggestions of other things to try. Here are the details about the problem and what I have done. Nothing I have done has toggled anything.


These are the symptoms of the lagging:

- It happens on CS6 and CC 2015.1.2. Both were running fine until a couple a few days ago. There were not any Photoshop updates that happened when this issues started. These exact Photoshop versions were running fine until the issue appeared. CS5 currently has no lag.

- The lagging occurs with basic functions. For example, filling a layer with a solid color can take 4-5 seconds. It take 3-4 seconds for the gaussian blur dialog to appear, clicking on the FG color takes 2-3 seconds for the color picker dialog to appear, etc.

- Also, just selecting different tools has a lag. For example, selecting the brush tool takes 2-3 seconds. The tool menu button switches immediately but the cursor icon is takes a few seconds to switch. Interesting though, if I select the tools through a jsx script there is zero lag. Just for testing, I recorded a script with the script listener to select the brush tool. When the jsx script is ran, the cursor and tool panel both immediately switch with no lag.

- The issue happens when no other programs are running and all RAM is free except what the OS is using. When I tested, there was 9GB free system RAM.


Here is what I have done to test:

- Reboot the computer....obvious first step

- Just to test, I turned the “Use Graphics Processor” settings off but that did not make any difference. It has been using the graphics processor with no issues until now so I didn't expect that as an. For the performance preferences, nothing here has changed. Photoshop is allowed to use 8 GB, graphics processor is being used in basic mode, history states are at 20, cache set to 4, cache tile size set to 1024k. I am 100% certain this issues is not with the performance settings.

- I also disable just about everything in the Windows start to ensure there was nothing much running in the background.  This did not fix anything.

- The issue seemed to occur at about the same time I installed Microsoft Visual Studio, although I can't say for sure the timing was exact. Visual Studio did lock up on installing and I had to re-run the installer. I uninstalled Visual Studio (and restarted the computer). This did not fix the Photoshop lag.

- I then uninstalled and reinstalled the graphics driver. I used the latest release from the AMD website. There was no change in performance.

- I then uninstalled CS6 and CC2015 and reinstalled CC2015. The lagging is still the same.

- I then checked Windows Updates and there were 2 recent security updates and 1 Adobe flash update. I uninstalled the updates and rebooted. The lagging is still there.

- I also did a virus and Malware scan and everything comes back clean.

As I mentioned, this computer has been running all Photoshop versions fine for 3 years.  It is my main Photoshop computer and I use it every day.  Whatever happened was suddenly without any changes to the system as far as I'm aware except the Visual Studio install. The only thing I can figure is the Microsoft Visual Studio install did something to affect this. However, that is just a gut instinct and uninstalling it did not fix Photoshop. 

I have no idea about what further to check or change short of an OS reinstall. Anyone with any suggestions?????????




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Damon Bell

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Posted 2 years ago

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Chris Cox

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What else changed on your system around the time the lag started?
Utility software updates or added?
Fonts added or removed?
Third party plugins or extension panels added to Photoshop?
A network drive added or removed?
A USB connected drive added or removed?
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Damon Bell

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What else changed on your system around the time the lag started?

There have been no hardware changes.  The only software change was Microsoft Visual Studio Express.  As mentioned, this locked up during install.  I had to quit the installation through the task manager.  I was then able to install it again and get it installed. I don't know if this lines up exactly to when the Photoshop lag issue started but it was really close.  I've since uninstalled Visual Studio and Photoshop still has the lag.


Utility software updates or added?

No other software was added except Microsoft Visual Studio.  


Fonts added or removed?

I was just reading about fonts that can cause the issue.  I downloaded the font test jsx script file and ran it.  All fonts passed the font test.  I then checked the list of known bad fonts and my system didn't have any.  

Since I had a big mess of fonts anyway, I decided to just start over on fonts.  I uninstalled CC2015 again.  Then with it uninstalled, I tried to use the Windows 10 restore font option.  I figured that I would restore Windows back to the original fonts and then install Photoshop and let it install whatever fonts it needs.  However, the Windows 10 restore fonts option did not do anything.  

I then made sure all startup programs were turned off in task Manager and restarted windows to ensure no other programs were running in the background.  I then manually deleted all the fonts it would let me deleted.  I ended up with 12 fonts that it would not let me deleted (required system fonts).  I then manually installed all Win 10 default fonts a .zip download and told it to overwrite anything that existed. I figured this would ensure there were no corrupted fonts.

I then reinstalled CC2015.  The lag problem still exists.  

I am still curious about why the Win 10 restore font option would not do anything and why I had to manually do this.  Maybe that is a clue to something, not sure????? 


Third party plugins or extension panels added to Photoshop?

There were no 3rd party plugins or extensions were installed when this started happening.  The only filters I have added are the Adobe optional filters (the ones with HSB/HSL).  I have had these installed from day one. I have never had any extension panels installed.

A network drive added or removed? No

A USB connected drive added or removed? No


At this point I'm really thinking about using the Win 10 restore option to wipe out everything.  I hope there is something else to try.......
(Edited)
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Damon Bell

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I am now going to run a system file scan from command prompt using "sfc /scannow" to see if there are any corrupt windows files.  I'll post the results when it's done.
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Chris Cox

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Try setting the font preview size to "None" to rule out fonts causing a slowdown.

But what you are describing sounds more like a video driver issue or something interfering with event processing in applications (ie: app doesn't see the event or draw request).
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Damon Bell

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The system files from the scan shows everything is fine.

Also, I already tried setting the font preview to none (sorry, forgot to mention that).  This had no effect either.

I also reinstalled the video driver with the latest AMD updated driver and that didn't fix it.  That was one of the first things I tried.

One really interesting thing is that there is no lag when the brush or any other tool is selected with a jsx script.  I recorded this script from the script listener along with other similar scripts to test. When this is saved as a jsx and ran then there is no lag.  It instantly selects the brush and updates the cursor. There is zero perceivable lag.  However, when clicking the tool bar with the mouse, there is couple second delay before the cursor switches to the selected tool

Although I didn't think it would fix it, I did try a new mouse which didn't do anything.

This script works to select the brush instantly.  Would there be a reason that this would act differently than a mouse click on the tool bar?

var idslct = charIDToTypeID( "slct" );    var desc16 = new ActionDescriptor();
    var idnull = charIDToTypeID( "null" );
        var ref6 = new ActionReference();
        var idPbTl = charIDToTypeID( "PbTl" );
        ref6.putClass( idPbTl );
    desc16.putReference( idnull, ref6 );
executeAction( idslct, desc16, DialogModes.NO );
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Damon Bell

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Wow, I just figured it out.  It was the script listener plugin!  I do a lot of script recording with it.  It has never caused lag in the past.  I have had this installed forever with no issues. I just removed it and it is instantly fixed.
(Edited)
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Damon Bell

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Also, I just figured out the this was due to an excessively large script listener VB log.  I routinely clear the logs so they don't get too big.  My desktop has become messy and I forgot about the VB log as it got hidden among the desktop clutter so I've only been clearing the JS log.  I've been doing a lot of work lately in Photoshop and the VB log file got huge. 

I deleted the script listener VB log and everything is fast again.

So..............it was all my fault :)
(Edited)
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Chris Cox

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AH, that's interesting.
We should probably add some warnings to the plugin.
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Damon Bell

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Also, thanks for the replies Chris.  Sorry to post on something that was my own doing.......