We have developed a SCORM quiz by testing it and uploading it via the "Add Existing" button in the course content area. Now we are loading these SCORM quizzes en masse via the API. The ones loaded via the API seem to communicate with the SCORM engine synchronously and as a result display some lag in the user experience. The ones loaded via the UI are quicker and behave as expected. Is there a reason that these two methods of loading the same SCORM quiz produce different results?