Ty for your replys.
And I sayed before, I'm 100% sure my drivers are updated.

I know for sure isn't low performace of the hardware, once I can run Battlefield 4 on ultra without any problems, so I kind think it can't be anything related with my computer, must be or something within FFXIV or another thing they use.

My temp running FFXIV is graphic card not even reach 60°C and my Processor barely get over 30°C so I think they aren't been used at they full speed for some reason.