Good morning Larzerus! Thank you for posting in the Final Fantasy XIV Technical Support Forums. We apologize for the delay in response to this issue.

Please try the following below to possibly help with this issue:
- Update and reinstall the drivers for your graphics card.
- Perform a clean boot by opening the task manager and select the 'Start up' Tab. Disable everything.
- Please be sure that Final Fantasy XIV is installed to the C: Drive.

If these troubleshooting tips do not resolve the issue, please provide the following below:
What Platform? (Steam/Windows)
Does this only happen to one character or all characters?
When you launched the game in DirectX 9, did this help with the situation?
What happens when you leave a character idle in high volume areas?

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