People outside healthcare really don't understand the sheer amount of time your physician spends trawling through the medical record in the regular course of doing his or her job. You can think of the patient chart as a shared "My Documents" folder on your computer. In modern multi-disciplinary care, you have many different parties taking care of the same patient and working in shifts. In order to get up to speed with what's happening for a particular patient, you need to open up each of the recent files in "My Documents" for that patient and review it. Lab results, progress notes, schedules, etc. Then repeat a couple dozen times for all the other patients you're caring for that day. Endless clicking. Constantly flipping between windows. Burn out.
That's not too much of an exaggeration of what the real EMR experience is like today.