Good morning and thank you for the reply LotteYanson,

I suggest to perform a clean boot by opening the task manager and selecting the 'Start up' Tab. Then, disable everything and then restart the PC. You may want to try setting the priorities higher for Final Fantasy XIV. While the game is running, please open up task manager and click 'Details'. Find the game and right click it to select the 'Set Priority' options to 'High'.

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