Review the API startup process performance

**Background**
From time to time we need to reboot the API service (e.g. to perform an update). In the production environment the timings a critical.
At the moment, it takes ~90s from the java process start, till the API/GUI become available to the users.
It would be great to minimize this time to whatever possible value.

**Approach**
* If there are any options, that allow to "just reduce time" - that would be great
* As the goal is to expose API/GUI as soon as possible - it is ok to keep the overall initialization process timings, but start the HTTP server earlier to make the GUI available before other system daemons.