Prior to Foglight Experience Monitor (FxM) version 5.3.1, there was a metric called 'Response Time Service Level'. It is now called 'End-to-End Time Service Level'.
The docs say "...This metric shows the percentage of page downloads that satisfy the threshold for the Page End-to-End Time metric specified..."
Because it is specifically for the _page_ downloads, we would like to see the metric renamed to be 'Page End-to-End Time Service Level'.
Enhancement request BR1565 has been submitted to Development for consideration in a future release of Foglight Experience Monitor.