Good morning and thank you for posting on the Final Fantasy XIV Technical Support Forums.

Where exactly do you get these fps drops? Is it in the same places every time? Are the frame dips only for a moment or are they sustained?

If it occurs about 30 minutes after you begin playing, it may be an overheating issue. Are any of the vents on your laptop obstructed, even partially? Does your laptop run off the the battery or is it plugged in?

If you know how to change the Nvidia settings, try changing the Vsync settings for Final fantasy XIV. Also, try lowering some more graphical settings (even if your GPU can handle it) to see if the problem still remains.

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