I've ranted elsewhere on this topic...but it's far, far worse than anybody realizes, and there is no incentive to make things better for patients. Every other factor is literally stacked against them.
And there are many related stories about doctors focusing on their computers instead of their patients as they fight with these systems (I kinda saw that once, but in all fairness the doctor had lost all her paper records in a tornado, I don't think she had anything left but her appointment book). In one worse case I read about, fighting the system until there were enough lights turned green.
In general this is a very hard field, e.g. the U.K. NHS more ambitious effort was an abject failure: https://en.wikipedia.org/wiki/NHS_Connecting_for_Health
In addition, the doctors I know who continue to practice have had to reduce their patient hours due to the amount of time EMR takes up.