Bayern as a whole don't put the level of intensity they normally display in the UCL in the Bundesliga and its actually disheartening because you see them play sluggishly initially at the commencement of the match and when they start trailing, they start putting in the effort, I actually don't blame them because they literally don't have nothing to lose in the German League, but one thing am happy about is the Dortmund win today which brings the point gap to just 6, just two more loses for Munich for Dortmund to catchup [ although highly unlikely]
You know that with the Bundesliga, Bayern Munich understands the dynamics so well and knows how well to maintain their dominance around there as it is a league they have been so used to for the longest, they have players in this same league for as far as several decades and have also maintained their dominance for the longest of time abutting for the champions league it is different and so they treat it differently because the challenge they face there is almost always new.