That's Very Very Very weird................I saw your video just now.
Ofcourse, I saw your external program (lazy-for smoothing). But In my experience that cannot be a problem.
What's strange is that when the photoshop is loaded, it feels like freezing from the brush loading.
Do you have a lot of brush packs for your work? (Of course, in general cases, even if there are many brush packs, such problems should not occur.)
If you have a some brush pack, I think it would be good to delete it and try loading it. (But I think you have tried this too because you have already done the same thing as resetting the settings in your previous article.
And I searched your computer "HPOMEN 30L Desktop" and read all its specifications. Your computer is very good. That is why that should never happen. Because that's what happens when you try to run Photoshop 2022 on your old Intel Ivy Bridge CPU. Anyway, a solution that turns on or off an option now (for example, turning off native canvas or turning off the GPU) does nothing for you.
So, I'd like to suggest three things to you.
1. if you have some brush pack for your work, Delete it or move it to another location and try Photoshop again.
2. Press the window key and R to hit "cmd". And try typing sfc /scannow and enter.
3. Reinstall any version without 23.5, and not just delete PS.
https://helpx.adobe.com/creative-cloud/kb/cc-cleaner-tool-installation-problems.html
Use this tool to cleanly erase Photoshop and install 2021 or 2020 instead of 2022.
(I personally recommend 2020. Especially 21.0.3 version)
Something is obviously wrong. It shouldn't be on your computer.
Please try it and let me know if there is any change.