Hi.
This is a old trick that did work for WoW and SWTOR.
I am not sure but i think it force the game to use more graphic memory and the computer will share the RAM as graphic memory. And what i remeber it only works on DX9 games. Dont know if gw2 is dx9 only or mabe this is forceing the game to run dx9 ? Anyway my FPS did go from 25-35 to 45-60 and looks good.
I run gw2 on: Nvidia 560ti 1500mb, 12gb RAM, AMD Phenom II X2 3400.
Just try it and see if it works for u to. Just uncheck the box again to remove it.
1. Navigate to your Guild Wars 2 folder.
2. Right click on GW2.exe and select properties.
3. Once the properties window is open you will then choose the compatibility tab.
4. Mark the box that says “Run this program in compatibilty mode”
5. Chose “Windows XP service pack 3”
6. Click “Ok.”
7. Double click GW2.exe to run the game using these settings.
I dont know if this is the exact words listed in your windows becose my windows is not on english but it should be easy to find.
!! Make sure to know that ArenaNet dont recomend you to do this !! If you do its on your own risk.