Worse performance in standalone than in editor

I have had to migrate my project to Windows because my MacBook Pro died.
The case is my project runs well inside the Unity editor, at about 25-30 fps, it is a rather complex project.
My pc is an AMD 4400 X2, 3 Gb RAM, Geforce 285 GTX, Windows XP Professional. I am using Unity Pro 3.1.

My surprise come when I build a standalone or a Web player (the result is the same) and I get only 8-10 fps in the same project scene and of course in the same machine. I have tested the standalone in another PC and I get similar fps (8-10).

I don’t understand what is happening because normally you get more fps in standalones than inside Unity editor. :shock:
Any ideas?

Have anyone suffered the same issue?

I would guess you use fantastic qualityacheck the quality settings in the editor

also if your game loads a lot dynamically the runtime will always be slower as it does not keep stuff in ram thats not loaded yet and alike

Thanks, but my project game doesn’t load dynamically almost anything. Also the problem is not in the editor but with the standalone or web player, (I am using the same quality settings in all cases: good) it is strange to get worse fps performance here.