Since I have upgraded from the Nvidia GTX 960 (4GB VRAM) to the Nvidia GTX 1080 (8GB VRAM), I have been getting weird frame rate issues when in certain places of the game

Here are some scenarios which I just encountered.

1) Iydllshire and some areas of major cities, would be, where I would get my frame rate drops from over 60fps straight down below 45fps, I guess it’s because of the amount of people in one place at one time, however that is nothing compared to the frame rate issues I found in Void Ark.

2) When doing the Void Ark after completing a smooth run in the Weeping City, I found that after a few seconds upon entering the raid, the frame rate when from around 70-80fps, drops to a poor 25fps, without me knowing why. Even when lowering the graphics settings to the lowest one, the problem still is there. The weirdest thing is that when I ALT + TAB, out of the game and re-enter, the frame rate goes back above 60 fps before dropping back down to under 30fps again, when I tab back into the game.

3) at random moments whenever I tend to watch some (not all) YouTube videos on full screen, on my second monitor whilst playing FF14, even in areas that are not populated, the frame rate will drop, until I come out of full screen mode on the YouTube video on my second monitor. (Both monitors are 1080p)

In normal dungeons and most areas, the frame rate seems to be very smooth around about 60fps and over (150-180fps)