@mark_taormino -
How many entries do you have in your modules? How many modules? I would think that it would have to be a very large number to cause issues.
A problem I have had was related to my computer memory - not having enough. Another issue I have had is with chrome locking up on me when I have several chrome windows open(30 or so). I have also had issues sometimes right after chrome updated (don't know why, but something I noticed).
If it has been going on for a while, my best guess would be an issue your computers memory and having several browser windows open.
If it is actually a numbers issue, reporting how many modules and how many entries per module would be useful for the instructure people that read the questions.