reduce the numer of api calls for get a pool during pool reconciliation

[bavarianbidi]

What is the feature you would like to have?

With #35 a second API Call towards the GARM server for each pool got introduced.

With some refactoring it should be possible to reduce the number of API Calls and with that it should be easy to get rid of some functions.

Anything else you would like to add?

No response