Fast Forward button not working on a laptop?

[fissure]

I decided to download the psx emulator on a laptop since my computer is basically capoot. I'm playing Persona 2: Eternal Punishment on it, the game runs perfectly. But when i hold down the fast forward button which i'm use to doing on my desktop, it doesn't actually work on the Laptop, it just runs normally, i've tried changing keys for Fast Forward but it still doesn't work.

I can play with out it if i need to, i would just liked to get this figured out.

[Ultima]

What are the laptop specs? Vsync enabled in the options?