Greetings Adventurer!

We would like to assist with your concern. Please try the following to see if they help:
- Perform a clean boot by opening the task manager and select the 'Start up' Tab. Disable everything.
- Please be sure to disable or remove the Discord overlay as well to see if this helps for now.
- Disable Full Screen Optimizations. To disable this, please find the "ffxiv_dx11.exe" and right click it and select properties. Then under the compatibility tab there will be a check box labeled "Disable Full Screen Optimizations". Check it and click apply.
- Try to install game on different drive to see if this helps.
- Reinstall the game once more.

If you do not see an improvement, please feel free to respond to this thread for further troubleshooting.

Thank you for contacting the Final Fantasy XIV Technical Support Forums.