The standard way of representing mathematics today is tedious to write and extremely non-intuitive in many ways. Unfortunately alternative representation systems of physical processes (e.g. block diagrams, Feynmann diagrams, etc.) don't yet provide a way for the user to operate on higher-level objects while staying on an abstracted level. One has to tear open all the black boxes, rewrite them as integral/sigma/matrix/bra/ket soup before they can be operated upon.
Most of the time when I read a physics paper, even in my own field of research, I spend abount 95% of my time and brain power parsing and 5% of the time understanding. This should be reversed.
In addition, a startling problem is that it now takes about 25-30 years of education from birth to the time before any individual can be productive to society in physics research. They are subsequently only productive for another 30-40 at most. As fundamental science continues to become more advanced, the increasing number of required education years to catch up with all of human history, even for a highly narrow, specialized field, is not a sustainable trend. Either modifying the brain or adopting a new framework of thought will be necessary to sustain progress; a notation revolution may facilitate the latter.