you can’t really do too much because much of the lighting is determined by the projector optics.
Nissan’s halogen projectors were never very good. Some people in the GT-R community prefer the N1/Base model lamps (reflector type) over the projector ones because they say they get better light output.
One thing you can do is try an upgraded halogen bulb, from a reputable company. No taiwanese “blue tint super hyper xenon” bullshit. A real bulb from a real company.
I’ve tried some of the halogen bulbs you mentioned, namely PIAA and Sylvania. The output remained unchanged. I’m assuming it’s because of the nature of projectors optics.
As an FYI, in the end, I ended up putting HID bulbs in the stock projectors. To avoid blinding people, I aimed the headlights as low as I could.