split second fps drop

i have an issue where i will be playing ff 14 and for a split second i will hit 30 or less fps from 60 + and it will keep doing this all the time maybe 10 secs apart maybe less. but everytime i install the drivers again it sorts it for a few days then its back. ive tried 3 diff drivers so far and im on a beta one now

UPDATE: as of the 13/2/2014 the game seems to be running just fine since i deleted the nvidia experience software so this seems to be the fix for it!

im running the game on pc at max settings at 60-80 fps and my spec is below:

CPU: I7 950 @ 3.1 GHZ
MEM: 12 GIG DDR3
Graphics: Gigabyte GTX 670 OC Edition
OS: Windows 7 64 bit

cant believe no one has any ideas on how to sort this issue oh well at lest ive not wasted any money yet on the monthly sub