However, every minute writing and grading retakes or grading long-overdue work is a minute that I’m not planning effective and creative instruction, grading current work so students receive timely feedback, or communicating with parents.
This may mean you're grading too much.
Assessment should be focused and pointed. Narrative feedback is helpful. Allowing retakes gives you an opportunity to focus only on what needs improvement. It is not a wholesale redo of the assignment. A retake should have the student focus on the specific gap in understanding which prevents them from achieving proficiency.