fbx model causing low FPS

Hi All. For the last couple days my game has been running super sluggish(3 fps). I initially though it was physics related, but all all sorts of playing around did nothing. So today I decided to remove my fbx terrain and so my fps went straight up. But now I don’t know why the model is causing this issue. Can you guys tell me why and how I can fix this?


What I did was set the model as static. After reading through http://docs.unity3d.com/Documentation/Manual/OptimizingGraphicsPerformance.html