Does charging near maximum C rate have the same effect as high battery levels?
You lose 5 to 25% of the capacity from rapid charge depending on ESR (Equivalent Series Resistance) of the bigger internal capacitance that takes longer to charge which is responsible for short term “memory” after a pulse load or charge.

I^2ESR=Pd is the internal heat power generated from excessive current rates. Heat is an aggressive aging factor.

You can rush the charging at the expense of more rapid aging.