Guild Wars 2

Hello. I have started playing GW2 on my laptop 3 days ago. Here are It’s specs:
AMD Radeon HD 7600M Series
4 GB RAM
Intel i3-2350M 2.3Ghz
The game ran fine for 2 days, medium settings would give me 40-60 FPS, low 60-80 FPS.
But then, It started crashing. I noticed that It happened after I had used the Razer Game Booster which also installed microsoft .net framework 4.0
The game will run fine from 10 minutes to an hour or two, and then It freezes. I can still here the music and everything, but It just stops. Then I have to use ctrl+alt+del and close Gw2.exe in task manager. In it I notice that my Cpu and memory usage never went above 70-80%. 80-90% of the times, the crash happened when I would write something In my party chat, and just when I press enter it freezes. Before that I would chat normally. Running the game at minimum graphic settings wouldn’t help.
What could be the issue? Some sort of memory leak, or Is my Laptop bad (even though I ran the game fine for 2 days)?

If you think it was related to Razer Game booster, do a system restore to a prior date and test.

This was fixed by updating my driver, but my FPS drops to 10-20 when there are more then 2-3 enemies on the screen, and I’m on the lowest performance setting :/