Come to think of it, it really doesn't look too bad... I would experiment with one shim under the needle and drop the jets about 0.05mm diameter, i.e go down a size. Take it for a ride, and see how it feels.

If the NSR is running too lean (probably not likely if it goes better without the air box) it can get a dead spot around 9,000 - 10,000 before it 'hits'. Keep that in mind.