Hello,
I have recently started playing FF14 again after months of inactivity, but I noticed one problem. When I run Palace of the Dead (not sure if the problem is in other instanced duties), I get massive framedrops (from 60 fps to 5 fps) for a few seconds, then it stabilizes back. This happens every few minutes. The weird part is that I have the same machine as before and I don't recall this sort of issue when I played this game. The only change that happened in the few months I didn't play was a complete reinstallation of Windows 10.

Now, my specs are not the best, but I shouldn't have problems running this game (and most of the time, I hit 60 fps on high). I even tried to change all settings to the lowest and these framedrops still happened (even from 120 fps to 5 fps).
I already tried changing antivirus, disabling AMD Cool n' Quiet and tried changing settings on my CPU. The temperatures are fine on CPU and GPU, so it's definitely not an issue with overheating.

Is there anything I can do to make it go away? I tried playing on my notebook and it runs without issues, but it's not as good as playing on a desktop PC with better keyboard and mouse...

Specs:
Motherboard: Asus m5a78l-m/usb3
CPU: AMD FX-8320E eight core processor
GPU: AMD R7 370 2gb OC
RAM: 8gb Kingston DDR3