Lipo batteries are old mate. Lithium Oxygen batteries are where it's at.
Foils can be seen, shape, angles, adjustments etal. What's going on inside the wing is far more interesting. Load sensors, pressure return info etc. How this info is used with wing controls, twist, cord, camber and angle of attack is most likely pretty cool.
Inefficiencies in foil shapes could be overcome with POWER.
Sounds like an amerikan car- put a big engine in and of course it'll go fast