"Resolving Reference" searches entire source tree just to switch between declaration/definition

I'm having issue where jumping between the declaration/definition of functions causes a "Resolving Reference" process that appears to be searching the entire source tree....when the answer is usually IN THE SAME FILE or the .h/.cpp equivalent of the same file! Is there something I've misconfigured about my project that causes this?  Or does AppCode really not search in the most obvious locations first?