When writing by hand in GoodNotes—especially while recording audio and taking notes at the same time—I frequently experience severe lag.

Because of this lag, when I try to write quickly and draw curved strokes, the app does not follow my pen movement in real time. Instead, the handwriting is rendered as a straight line connecting the starting point and the ending point of the stroke, as if the curve information is lost.

This behavior is very disruptive during fast note-taking, particularly in lectures or meetings where recording and handwriting must happen simultaneously. It breaks the natural flow of handwriting and makes notes inaccurate and harder to read.