Photoshop 2022, 2021 and 2020 experience lag in the whole application. Clicking anything takes 2 to 3 seconds to respond, the menus, any tool, even the Window to open a new file. The effect comes and goes while using the application, Task manager shows plenty of available resources in CPU, RAM and GPU. Like 70%+ still available in each. I have about 400GB available on the cache drive and installation drive.
Photoshop 2019 is the last version I can run that doesn't experience lag.
No other applications experience lag while Photoshop is lagging.
Windows 10 Home, latest update.
ROG Z370-F motherboard
Galax RTX 2080 Ti GPU - latest drivers
Main drive is M.2 SSD, other drive is standard SSD.
This issue has been ongoing for 2-3 years, every so often I install the latest Photoshop to see if it's fixed. It's not, so I go back to using 2019. I always use the latest GPU drivers, but I've tried both standard Nvidia driver and their Studio driver... neither fix the issue. I've even used the Nvidia driver cleanout tool to install latest drivers.
I have completely reset my preferences in 2022, lost all my templates, brushes, gradients etc and settings at default. I reset using the start up hotkey, and also from the Preferences menu to make sure.
This issue seems to be a problem with lots of people, probably an app conflicting with it but I can't seem to find which.
Righto. Font Preview > "None" has fixed the issue. The lag stops immediately. I ran the Font Test script in that troubleshooting guide and all 1300 fonts passed. I also cleared the Font Cache with the tool. After relaunching Photoshop the Text Tool was not causing lag, but as soon as I enabled Font Preview again the lag started immediately. So it would seem when the Text Engine is enabled the Font Previews are being processed for a few minutes which is causing the lag. I thought this is the purp...