TIDA-01063: How to calculate and varify the bandwidth of the rogowski coil

Hi, hope this finds you well. From the datasheet of the TIDA-01063, the bandwidth of the rogowski coil is up to 20MHz, but the amplifier the system used INA188 only has 0.6 MHz, how can it be 20MHz overall the system? Could you please explain how did you calculate it and validate it? Thank you so much.