Vuforia Initialization Time

Since upgrading to Vuforia 1.5.9, we've experienced extended initialization times, mainly the first time the app loads. As I understand it, based on research here, this is due to Vuforia downloading information about the device / camera to provide better performance. This makes sense, and it is acceptable to have a bit of a load time the first run, for a better overall experience. However, in some cases, it'd be helpful to speed this process up, or disable it altogether. For example, when doing rapid prototyping / development, we'll often build and run an app dozens of times per day. However, using the sample ImageTargets, without any modifications, devices we've tested take anywhere from 21 seconds to 52 seconds to initialize. Within our app, the time is even longer, sometimes taking up to 2 minutes to initialize (this appeared to be loosely coupled to the number of trackables, but I haven't done extensive testing to verify that). This initialization time really puts a hamper on rapid development, because every minor code change requires a long initialization time, cutting into dev and testing time pretty significantly. So is there a way to disable this to aid speeding up development? Thanks!