Geet and Maan are absolutely fabulous actors at all times! Yes, there may have been times when either of them have been a little bit off in their superb acting in terms of levels of intensity (maybe from 10-9), but they have always managed to get the message across well as far as I am concerned.
What i find undermines their performance is the script / execution of plot and introducing illogical sequences. And this is not their doing at all, it is the cvs, direction that has to manage whether the plot is good enough for the episode. Actors are doing their job and doing it darn well, which is why we love them the way we do.