Slow Selection Performance

I have a lot of problems with selecting a subject by denois and sharpen.
When I want to select or remove something, the circle is too big and goes very slowly across the screen.
I’ve had this since the last 3 versions.
I would like a solution for this

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Please send me your system profile information so I can check if your computer hardware is up to date.

You can securely submit your files(s) to my Dropbox using the link below.

Please be sure to send me a note here to let me know you sent something.

Hello John,

I have send you the information in your dropbox.

But I have received no feedback till now.

Best Regards

Martin Quaedvlieg

Is this problem with the Selection feature happening with all Brush Types?

Please try to recreate this issue in Topaz Photo AI, then go to Help > Open Log Folder, send me all of the files within that folder. You should be able to attach them directly as a response to this email.

You can securely submit your files(s) to my Dropbox using the link below. Please be sure to send me a note to let me know you sent something.

Dropbox File Request

Hallo John,

Hereby the log folder.

Best regards,

Martin Quaedvlieg

2024-04-05-08-29-14.tzlog (112 KB)

2024-04-05-08-33-20.tzlog (197 KB)

2024-04-05-14-16-38.tzlog (326 KB)

2024-04-05-14-21-44.tzlog (1.02 MB)

2024-04-05-14-32-46.tzlog (827 KB)

2024-04-05-16-40-11.tzlog (1.9 MB)

2024-04-06-15-33-5.tzlog (2.19 MB)

2024-04-06-16-08-54.tzlog (110 KB)

2024-04-06-16-10-30.tzlog (413 KB)

2024-04-06-16-12-33.tzlog (563 KB)

Filter Plugin Log.txt (4.53 KB)

lastSessionFiles.txt (62 Bytes)

Topaz Photo AI Installer Log.txt (1.66 MB)

Thanks for sending those log files in to us. I have talked with some of the developers and we they have a task on their docket to fix this in up and coming releases.

Unfortunately, the performance of the selection brushes has been slower in the latest versions.

We are working on fixes to improve the responsiveness very soon, as it’s a larger part of the enhancements. So far as I know, it’s not your hardware that’s causing the issue, and we need to fix it on our side.

If you would like to revert to any previous Topaz Photo AI version, you can find a list of previous installers at the following link:

Topaz Labs | Community Forums | Topaz Photo AI | Releases

Having some issues using the selection tool when selecting a subject. When trying to select or deselect something the process is extremely jerky and slow reacting. This happens when using the tool in the sharpen, removal or noise reduction process. It is very frustrating and not pleasant to use. I believe that it may have functioned properly a couple of time in the dozens of times I have used it. Not sure if it is the program or my system.

Any assistance would be greatly appreciated.


Hello John,

Thanks for the feedback.

I have been familiar with Topaz for some time.

I already had the programs Denoise - Sharpen and Gigapixel.

Always to my complete satisfaction.

I am also satisfied with Topaz Photo AI.

I’m waiting for the next updates and hope it gets fixed soon.

Best regards,

Martin Quaedvlieg

1 Like

In previous versions this worked very smoothly and fast. Now if I wish to modify the subject detected to either increase or decrease the area not only is the response sluggish but the cursor area moves erratically ie like not smoothly but a bit clockwise like

Steps to reproduce issue:

  1. Transfer from Lightroom to TAI
  2. Let software do its stuff!
  3. Modify subject using either denoise or sharpening modules

Trued uninstalling then reinstalling after a reboot. No change to the above.

Topaz Photo AI [v2.4.1] on [Windows 11] - working in RAW

2024-03-16-10-43-17.tzlog (570.9 KB)

Same issue here

Please send me your system profile information so I can check if your computer hardware is up to date.

You can securely submit your files(s) to my Dropbox using the link below.

Please be sure to send me a note here to let me know you sent something.

Hi John

Thanks for getting back to me.

Have just upload DxDiag via dropbox as requested.

Best regards,


I would like to see if updating your GPU driver will resolve the problem.

Please use the following link to update your driver: Intel | Driver Update

After the update, let me know if you are still experiencing the problem.


I use Nvidia, as far as am aware, for GPU and that is up-to-date. See below.

Also not happy to alter OEM settings on my laptop – see below screenshot. Furthermore, via device manager, says Intel graphics has the latest driver so as a non-IT person don’t understand why two different statements!

What I have also noticed is that the abnormal response is primarily with the brush not superpixel or object detection. That said still sluggish even with these compared to previous version which was perfect.

Incidentally preferred previous layout to detect subject where it is in a bar of its own. With the current layout have to now open noise or sharpen layer. This means unnecessary extra clicks!


Hi John - to confirm reverted to 2.4.0 and no issue using selection brush. Upgraded to 2.4.2 and having same issue as 2.4.1 ie brush selection is slow and moves erratically

Hi John

Just updated to 3.0.1. Regarding the brush lagging issue- doesnt happen if I access TAI from photoshop only from Lightroom Classic. Doesnt happen in TAI in LRC if use object selection or superpixel only with “regular” brush.

To remind you all was OK for me with version 2.4.0.

Any ideas to the time frame for resolving this problem?

Also apologies if I have not added this message in the correct way.

Our developers are working hard at trying to resolve this issue for future updates. I personally do not have an exact timeframe for this but we will be sure to reach out to you when the problem is resolved.

When only removing objects from images, after 5 - 6 images (large .JPG files), when you select an area with the brush tool the selection takes longer and longer to process before allowing you to use the remove button. Ultimately, you will sees windows reporting that the application is not responding. This does not cause the system to crash but rather increases the time to process images.

I suspect that the mask applied to each image is not being cleared from memory in some manner.

Steps to reproduce issue:

  1. Process 5 - 6 images removing content from each image
    2.Keep processing images from here should start to noticeably slow down
  2. Exiting and reloading the Photo AI fixes the issue

Topaz Photo AI [3.02] on
Windows 11
12th Gen Intel(R) Core™ i9-12900K 3.20 GHz
Windows 11 Pro
OS build 22631.3527

I’m unable to adjust the subject selection because the UI is so incredibly sluggish. Prior to 2.4.0 it was a bit sluggish but still usable. I’m editing a 9504x6336 resolution image (quite often lower resolution than this because I crop before using Photo AI so I don’t think the resolution matters that much). The auto subject selection has never been perfectly accurate so I often adjust it manually, so this makes my the product unusable for me. I’ve now returned to 2.3.2 twice (from 2.4.0 and now also from 2.4.2) and uninstalled the newer version.

I have a Macbook Pro 2019 16" (Intel-based) - 2.6GHz 6-core, 32 GB 2667 MHz DDR4, AMD Radeon Pro 5500M 8GB, Intel UHD Graphics 630, 1536 MB, running Sonoma 14.2.1.

Steps to reproduce issue:

  1. Choose the divider view (where you drag the vertical divider left & right to reveal original image vs updated image in the preview.
  2. Make sure Sharpen is present and click on it to make changes to settings.
  3. Switch to subject selection and attempt to modify selection using add/remove. It takes forever to respond after hovering mouse over image and after clicking to modify selection.

Topaz Photo AI [v2.4.2] on [Mac]

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Please follow the instructions below to perform a clean install to better troubleshoot why you had this problem with Topaz Photo AI:

Start by clearing any previous plist files that are on your computer for Topaz Photo AI by following the steps in the link below:

Topaz Photo AI | plist Files Mac

After you have done this, disable any antivirus, firewall, VPN, or proxy software that might be active on your computer. These tools are sometimes known to interfere with the installer’s ability to download the model files.

Please also ensure that the Topaz Photo AI installer has all the proper settings in your system by going to your Mac System Settings > Privacy & Security tab and scrolling down to the security section. You will want to make sure you have 'App Store and identified developers ’ selected. Here is a video example:

Example of Proper System Preferences

Finally, rerun the installer. You can download a new installer from the downloads page directly :

Topaz Labs Download Page

Let me know how that goes for you and I’ll keep an eye out for your reply.