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

You mentioned this has been happening for a few months, do you recall when it started happening? Can you remember if anything changed/updated on your PC that coincides with this?

What have you attempted so far to alleviate the issue?

You mentioned that the CPU is at 100% usage when you pull up the task manager. Is it XIV that is using all of it, or is it something else (or are you unable to see that at all)?

I would suggest trying a clean boot if you have not done so already. Simply open the task manager and select the 'Start up' tab. Disable everything here and restart the PC. This will make sure that no background processes are interfering with the game.

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