Disk Spiking to 100% at random moments

[Habura]

So, I’ve been experiencing some random moments in the game where my disk suddenly goes to 100% and then goes back to normal.
Usually happens after a teleport, or at the start of a trial fight, but can happen in the middle of battle.

This don't happen all at the same time, but the most common one is the teleport loadings, which takes a really long time to load, and then it locks up certain functions like combat animations, and movements (it's like I am sliding), HUD interactions, sound disappearing and etc.

The weird thing is that it only happens when playing FFXIV, no other game has made this happen. I already tried to clean some stuff in the computer, and even restore some functions of my SSD like the command "chkdsk" /f and /r.

The only application that is usually running all the time is Steam and Discord.