I think crazylegs is right, the spec of that bike is pretty consistent. I don’t think that swapping from the fulcrums to the model Bs would make that much of an impact – if you were going for the wheel upgrade, I’d be looking at carbon rimmed something like the planet x 50mm rim clinchers, but we’re in the £300 range which is a fair chunk of money
stick with the gears, they work for you.
If you do go for a new frame, remember that you’re current one has a english standard BB, some frames are starting to use BB30 or variants thereof so check with the place that you buy from that your stuff swaps over