The real way to not suck at supercharging is to build a better charger. Tesla's V4 chargers finally have longer cables and contactless payment which is good, but they still suck at charging 800 volt cars:
https://www.youtube.com/watch?v=sEJ2KtzMeh8
Alpitronic and Kempower make the best chargers at the moment. They both have 400 kW units in the field:
https://www.youtube.com/watch?v=T4ZWN_-a2j4
https://www.youtube.com/watch?v=qR2M5W6saAk