It would be nice to have some kind of (internal) event or at least an undisruptive visual indication if a log[*] or logrt[*] item exceeds MaxLinesPerSecond (maybe considering both s_count and p_count separately)

To me MaxLinesPerSecond is a very important feature and should be configured wisely for every log item individually.
The initial setting is based on best knowledge in most cases. But for assuring to get the right setting it's not sufficient to rely on recognizing delayed triggers or actions.