Hi Pippo,
sure we can make an estimate. However, it is not the time i am worried about. It is about the fact that a register access (an access to a memory mapped region) increases in time. That should never(!!!) happen and is a clear sign that something is not working as it should. While this might not be an issue at the moment, other side-effects might pop up in the future and they might be worst. It’s like building a house. It’s always good to get your foundation right before you build upon that.
Cheers,
Torsten