I guess it depends on how complex the patient. In pediatrics, a good portion of my visits are fairly straightforward, i.e. OM, Bronchitis, conjunctivitis. It also depends on the setup. My MA does everything on the left except for the medications at the bottom -- she will type in meds at the top, i.e. patient taking Tylenol and Dimetapp for colds (depsite FDA warnings), lol.
When I come in the room, I may add a bit to the history. I will also ALWAYS click on the medication list at the left so I can update the medication list which allows me to make sure I know what is going on with the medications.
So, after examining the patient and making a diagnosis or assessment, my actual charting of the note could take less than 30 seconds if a templated PE fits, and there are no labs or meds to write. If there are labs, meds and a more descriptive assessment and plan necessary, then it may take up to two or three minutes. But, for me, I always finish the note in the room, and it usually doesn't take that long. But, for a FP or Internist who may be updating five or more problems per visit, that could be altogether different.