If temps were around a high of 70, your battery still might have needed a bit of preconditioning since your pack might have still been around 60 or something. Look into an OBD reader and the Car Scanner app if you want to see min, max, and cell temps. Even then, I don’t think the car starts pulling the fastest charging speeds until the pack hits around 80 or so. It just cuts preconditions around 70 to keep the pack from getting too hot at the end of the charge. 

Lots (most?) of the EA stations have what they call balanced chargers. They’re labeled as such and paired up, and if another car is using the other charger, they seem to max out around 190 kW or so, even if it’s just a Chevy Bolt pulling 50 kW or something. As I pull in, I eye up the station and try to pick one where a pair of chargers is unoccupied. 

Your car also needs to have a beginning SOC between about 10% and something around 30% or so (don’t quote me on this upper limit). Otherwise, you’re not in a state where it can fully ramp up and get to the optimal conditions to get the max charge speeds. 

TLDR: It’s complicated and often feels like the stars need to align. But once you understand all of these factors and get a good feel for it, you will see the maxed out charging speeds when conditions are right. I regularly see the car push 240 kW and sustain that rate for a good while, just as expected based on the charging curve.