Changing the Statistical Value in from the drop-down in Explorer does not change the values for Time To First Byte. It still continues to show the Average value for Time To First Byte (and Send) irrespective of whether you choose Median or Mean or any other statistical value.
Reason: When calculating performance metrics, Time To First Byte is calculated as a composite metric. In other words, it's the sum of DNS + Connect + SSL + Send + Wait. Therefore, when looking at a performance table, while the other raw metrics have different statistical values corresponding to Median, Average, 95th Percentile, etc., for Time To First Byte (and Send, among others) which are composite metrics, the Catchpoint portal will only display the Average value.
Composite metrics do not have a statistical value attached to them, so unlike raw metrics, the portal will only display the average values alone.
