Generating event when doPoll takes longer then data source update time

[Patrykb0802]

Problem Description:
Currently, the doPoll function fetches data from the source without tracking its execution time. As a result, if the execution time exceeds the set update interval for the data source, the system is not alerted to this delay. This lack of monitoring can lead to synchronization issues, difficulty in diagnosing performance problems, and potential disruptions in subsequent data processing.

Proposed Solution:
Implement a mechanism to measure the execution time of the doPoll function. If the execution time exceeds the defined threshold (the data source update interval), an appropriate event should be triggered.