It's really not, not even for professionals, but anyone playing at a decent hobby level. Consider, for example, Beethoven's Sonata Pathétique (accessible to many amateurs), starting with Grave (very slowly) and changes to Allegro.

Either you start with an impossibly long bar that covers the screen, where you can't see how the phrase flows into the next notes, or you later get to a dozen identical ultra-short bars mashed on top of each other.

And that's just one problem.