Activity ends before custom Application_EndRequest

[chris-smith-zocdoc]

We have a custom HttpApplication class defined in our Global.asax which has an event handler Application_EndRequest

When this handler executes, I expected it to be within the current Activity but it was not, as the event registered by TelemetryCorrelationHttpModule had executed first. This causes any spans (we're using open-telemetry) created in our EndRequest event to appear as if they started after the root span has finished.

Is there a way to ensure our Application_EndRequest event is executed before the one defined in this http module?