Course Pre-Requisite still showing after required course completed

Have a couple issues with the Course plug-in...

1) I've set up a course (B), so that another course (A) is a pre-requisite. But when I go and complete course (A), and try to take course (B), it still shows as needing course (A) to be completed!...

When I look under "My Courses", Course (A) shows as complete. However when I look at the Course (A) page, it still has the "Continue Learning" link. So I'm not sure if this course is actually completed, or if it's only completed under "My Courses", but no where else.

2) For some reason, any action takes minutes, when I think it should take seconds. IE. Enrolling in a course takes 1-3 minutes. Same with creating a new account (using the Course registration page). I have no idea what's causing this - have tried deactivating other plugins, and problem still persists.

Thanks,