Troubleshooting Blocked Wait performance issue

[sneaky]

My app is having performance issues. It's real sluggish. I have been tweaking core data fetches and making sure I'm behaving with the memory allocations all at no avail.
Just started checking what else I could test and in instruments I'm running detailed CPU info and I see that 98% of the time my app is in a state of "Blocked Wait" It's just sitting there waiting for CPU.

So that's the problem but I really don't know how to troubleshoot this. What would cause a blocked wait?
Instruments isn't being very helpful when it comes to _what_ is causing this. I realize instruments probably is showing the info right in front of me but I don't know how to interpret it