That's more of a Tesla thing. The Korean EVs have a more modern 800V setup and get much closer to the 400kW charger rating. Ford also lags in this department because they're using 400V and a big battery, which isn't a great combo.
The Hyundai/Kia EVs see peak charging above 200kW on chargers that support enough amperage (and native voltage), but not necessarily average charging above that rate. (I'm familiar; I own one.)
