Details:
Ever since I installed FFXI on my laptop I've been experiencing low FPS, specially in situations that include many characters on screen. Such as Port Jeuno and Voidwatch. This makes the game really hard to play most of the time, but specially in voidwatch it's near impossible to do anything because of the slideshow effect caused by the low framerate.
I've already tried messing with all the graphical options possible, still no luck with getting an improved framerate.
Am I supposed to install specific drivers? Also I've been trying to improve my situation by changing some options on the nvidia control panel, it doesn't help either.

Steps:
1. Open FFXI
2. Experience low framerate

Date & Time: Mar. 19th, 2013 at around always
Frequency: Always
Platform: PC
PC Manufacturer & Model Number: Asus N76VZ
OS: Windows 7 Home Premium 64-bit
Graphics Card: NVIDIA GeForce GT 650M
ISP: Optimus Clix
Type of Internet Connection: Optic Fiber