Ok I just found out something scary and annoying. Did a lot of research on this but basically when there's a lot of things going on on screen like in alliance raids or hunts Nvidia hands off the work to the cpu....this basically slows everything down and your and you notice a stutter when it does.

The fix is very obscure, basically you need to go to nvidia control panel and go to physix in the menu and instead of setting it to Auto you set it to the nvidia card and that basically fixes any harsh slowdowns during raids/hunts.

I hope square enix takes notes and hope this helps some people.

If there are other information about nvidia to make ffxiv run better on pc please post it here thank you

Also make sure to update your drivers
https://www.geforce.com/drivers