Configurator check-out inconsistently slow

Question

I recently moved to a department that uses Configurator to check-out iPads to student clinicians. Over the time the department has used Configurator they have run into more and more instances of the check-out process taking an exorbitant amount of time to check out an iPad. However, this isn't always a consistent problem. The same user can check out an iPad one day and take up to 20 minutes to complete the check-out process. The same user can check out an iPad the next day and the check-out process is almost instantaneous. This happens regardless of the model of iPad (64GB iPad 2 and 64GB iPad Air), if the user always checks out the same iPad, or what data the user has saved to their profile. Several users have said they delete all their data after each use, before checking in the iPad, yet it make take up to 15 minutes to check-out an iPad the next day. For example, we have one user who always checks out the same iPad and because she requests the last iPad in the case, no one else ever checks out that iPad. Her check-out time can take up to 15 minutes on some days and 1 minute on other days. I set myself up as a new user and it checked out immediately. All of the clinicians are supposed to delete any pictures or videos they took while using the iPad. Cookies are allowed "on websites I visit."
Being fairly new to the department and Configurator I'm not sure what may have been done to lead up to this issue. I was informed that when clinicians left the department, instead of deleting their profile, they changed the name to a new clinician coming in to the department. However, even clinicians with new profiles have been known to have this problem occur. Is it a normal function of Configurator, that it can be randomly slow to setup an iPad during the check-out process? Or is there something that may have been done to create this issue? Is our lack of available backup space contributing to the problem?
Specs:
Apple Configurator Version 1.5
Mac mini Server
Processor: 2 GHz Intel Core i7
Memory: 4GB 1333 MHz DDR3
Graphics: Intel HD Graphics 3000 384 MB
Software: OS X 10.9.5
Storage: Backup - 500 GB SATA Disk, 33.83 GB free out of 499.76 GB
             Server HD - 500 BG SATA Disk, 441.47 GB free out of 499.25 GB

Answer 1

We just have a couple of clients at the moment, but we wanted to get a solid workflow down before we bring in more people. You're right that we don't capture directly to the network drive due to fear of dropped frames.
If a 2nd client checks out a project that a different client checked in, I understand that the media will need to get copied over from the server's network storage to that 2nd client. I just hoped that the original client that checked something in could check it back out without having to download the media when that client already has those files elsewhere on their local drive.
Matt