Canvas - Known Issue - Large Enrollment Gradebook Slowness
Large-enrollment courses have longer-than-usual load times within the Canvas Gradebook
Instructure has acknowledged a known issue in which large-enrollment courses have longer-than-usual load times within the Canvas Gradebook. At times, the Gradebook can take several minutes to load. This issue primarily affects courses with enrollments of over 350 students, but it may affect courses of all sizes.
Instructure is investigating this behavior and working on a solution.
Please contact firstname.lastname@example.org if you are experiencing this issue. This will help us in collecting case-scenario data.