brush lag

Is this occurring with all brushes, or only specific brushes? Which symmetry setting are you using? Can you post a screen recording showing the entire application window of the issue occurring?

The problem was not solved, the brush is still very slow 😔

Hi @mohamedh37943917, sorry you are seeing brush lag isues.

Let's make sure we're in a default state and there are no stale setting somewhere: 

Restore your preferences using this manual method:  

https://helpx.adobe.com/photoshop/using/preferences.html#Manually  

Does it work correctly? 

If that doesn't solve it, you can quit Photoshop and put the Settings folder back. 

If it does solve the problem, I would like to get the folder of settings to try and figure out what is bad with them. 

Thank you,