Or are you saying it feels like it’s being applied?
Michelist
No. I am not pulling your leg, and i meant that i feel like brush smoothing is being added. I am unsure if the brush lag is coming from the brush smoothing effect being enabled or if it is something else entirely. I AM sure that there is lag however. If you watched my video you can see for yourself how the pointer moves compared to my pen. In the canvas there is significant lag. Compare that to how the pointer moves in the brush scratchpad as i show in the later half of the video and you’ll see that its alot snappier and quicker.
Okay, now that’s understandable. And, yes, I’ve seen the video and can see the stroke following your stylus, so there is something, but I have issues to grasp what that may be, because your CPU has ~27% more “power” in the applicable category than mine, and I don’t have these issues with canvases of 10000 by 10000 pixel and such a simple pixel engine brush you use. That is a miracle to me.
Michelist
Exactly, i am super confused by this and i have no idea whats wrong. Theres no issues with any other program, just Krita
There is a small amount of lag in the Brush Editor scratchpad but not as bad as on the canvas.
When I used to use my old and creaky desktop PC, it had far less CPU power and far slower RAM that your PC but there was no lag with version 5.2.2 using Linux or Windows, unless I used a large canvas and a large brush with a complex tip image.
This should not be a CPU power or RAM problem.
When krita is running and the canvas is fairly small, what does Task manager say about the total RAM use and CPU use?
What other applications (if any) are running when you’re using krita?
You’ve already tried changing the rendering and scaling options in the settings.
Canvas Graphics Acceleration is not used for painting but try turning it off anyway to see if that has any effect. (I’m running out of ideas.)
Honestly its such a small amount of lag that i cant notice it at all in the scratchpad. If only it were the same with the canvas
Here’s what task manager says about krita.
As for other applications, i have Firefox and Discord open.
And yes, i have tried turning graphics acceleration off, it was one of the first things i tried
That’s strange because with a freshly opened krita 5.2.2 and an empty 1k x 1k canvas, my Windows 11 Task Manager shows krita as using 1.6 GB of RAM.
Which version of krita are you using and where did you get it from?
Also, I’d try closing Discord and Firefox just in case there was any effect.
Version 5.2.2, i got it from the official site
And yes, i did try re-downloading yesterday. That did nothing as well.
And i just tried closing both apps and restarting krita, no effect either
I have no idea what could be happening here.
Hello @leafialeafeon3, lately but welcome to the forum.
I have a question,
Is this lag also happening with a mouse painting?
…K . A . B . H .
Yes, i tried using a mouse and i could still feel the lag. The cursor was noticably slower
Have you tried these steps,
- Update Graphics Drivers : Make sure your graphics drivers are up to date. Outdated or incompatible drivers can cause performance issues in graphic-intensive applications like Krita.
- Reduce Canvas Size : Working on a large canvas can strain system resources. Try reducing the canvas size to see if it improves brush performance.
- Disable OpenGL : If you’re experiencing issues with OpenGL rendering, you can try disabling it in the performance settings. This may improve performance in some cases.
- Adjust Tablet Settings : As you’re using a graphics tablet, ensure the tablet drivers are up to date. Experiment with adjusting the tablet’s pressure sensitivity settings to see if it affects performance.
- Disconnect Tablet from PC : Try disconnecting the graphics tablet from your pc.
- Stop all background applications : As you have a large amount of ram, it’s not a mattered thing but I will you to try this too.
That’s all I could say from my little knowledge. Hope it will helpful.
…K . A . B .H .
Yes i have updated my graphics drivers, asuming you mean graphics card drivers?
Reducing the canvas size was one of the first things i tried. In the video i sent, the canvas is 940x540
I have tried both rendering options in Krita as suggested to me in an earlier reply from Takiro. Both had no impact
Yes, my tablet drivers are up to date. I got them from the official xp-pen website. As for pen pressure, i have played around with it a bit, and it works well. No issues on that front, the only issue is with the brush lag.
I believe ive tried disconnecting before, still to no avail.
I have tried stopping all the other applications except krita as suggested by another reply here. Still nothing unfortunately.
Thank you for trying to help, unfortunately i’ve tried all of these before and the problem still persists
edit: removed a typo
edit 2: fixed a mistake with the resolution, it was 940x540 not 960x540
I only want to say sorry, 
Recently I found that the things I said and asked have already been done before. That is one of my bad habits, that I read very fast, that’s why something got skipped by me.
Please look at these with forgiveness.
…K . A . B. H .
No need to apologize! I appreciate your time in trying to help anyways!
What does it look like with the stability on?
Does it do the same thing with simple brushes like pens.?
I have Kamvas 16 pro.
@Michelist could the Spacing value affect the lag?
@leafialeafeon3 there is a setting max brush speed. And a tablet tester in tablet settings to see tablet vs krita response. I hope you have not checked those yet.
The Maximum Brush Speed setting is for scaling the stylus Speed value response for brush presets that are controlled by Speed.
Ah good to know.
Other than turning on the cursor to see if the distances between cursor to brush and cursor to stylus are reasonable. That is all I got. 