Thank you for the reply DrCalm.

Do you have 'Use low-detail models on distant objects' and 'Cache LOD data only when necessary' checked in the graphics settings? If so, try turning them off.

Does changing the display to windowed or borderless fullscreen make any difference?

If the above does not change anything, make sure your graphics card drivers are up to date.

Also, do you have any other program or overlays running while playing the game?

We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!