Need help with FPS problems

[ANXGrim]

So i just installed Skyrim on my new laptop, and considering it's an weak machine, i turn all the settings to the lowest options possible. When i start up the game, it's very choppy with a framerate of about, i'd say, 10 fps. I decide to download an mod called Ultra Low Graphics which sets the graphics even lower. I install the mod, and when i enter the game, sure, the graphics are different but the framerate is the same. Even the lowest settings possible which look like crap have the same framerate. I then try windowed mode, and the game runs stable even without the mod, at about 30 fps.
Ram 4 gb
GPU : GeForce GT230M and GeForce 9100M G (laptop supports Hybrid SLI which doesn't work anymore sadly, even when i download the older drivers that supports it)

CPU : Pentium® Dual-Core CPU T4400 @ 2.20 GHz

Thanks in advance, some info on the Hybrid SLI technology would be nice.