Wings 3D 1080 Monitor Problems

[xPearse]

I recently bought a new monitor at 1080 but it goes laggy for no reason even though before on my 1024x768 it never went laggy even when I had tons of models on screen. Even when I have nothing on screen the program runs laggy, I would really like to fix this problem if I can as it's slowing me down. I hope it's not the new monitor because it probably is, I doubt it's my pc specs as I have 2gb ram and 1.6 dual core so that should be enough.