With some Kontakt instruments, load times can be sped up considerably by saving the instrument/multi you are loading once, after it is fully loaded. Make sure you don't make any changes unless you want those changes to become part of the instrument/multi.
 
Regards,
Dan
 

+1 to what Dcumpian said.  Try doing a batch resave on all your kontakt patches and you'll find the problem goes away, did for me anyway

You can also try Purging memory in Kontakt instruments and saving that. It may make it load faster.

Here is a LONG running thread in Kontakt instance loading and such, dating back to 2011, and was active not too long ago.
 
There might be some good info in there for consideration, and if I recall, there are posts from conductor folks who described massive templates, as well as posts from Noel Bothwick (Cakewalk), and from some folks that approach Kontakt with a notion of more instances with fewer instruments per instance.
 
http://forum.cakewalk.com/FindPost/2253267
 
Long read, but there may be stuff there you might find helpful.
 
Bob Bone