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Is there a diagnostics flag in ktor so it logs where it spends it's time?

background: we have a ktor app that does a GET request to a https-url available from the internet.
If I start the application locally the request takes around 300ms.
When I start the application within a docker container deployed in our internal network (connected to the internet via a proxy) the request takes up to 18s!
When I do an equivalent GET request via curl over a console from the same docker container in our network the request takes around 100ms.
Therefore it would be nice to know where Ktor spends it's time. (DNS resolution, TLS-connection, ...)

&gt; Is there a diagnostics flag in ktor so it logs where it spends it's time?
Unfortunately, there is no such flag in Ktor. You can collect various metrics about the server application using <https://ktor.io/docs/server-metrics-micrometer.html|the metrics functionality>.

hmm, unfortunately next to <https://micrometer.io/docs/ref/jvm|JVM metrics> the <https://ktor.io/docs/server-metrics-micrometer.html#ktor_metrics|HttpMetrics> only meassures the execution time for each request (and the number of requests) but nothing more granular.  :disappointed_relieved: