Start to get some perf tests going
Prevent deadlock in KeyedOperationQueue

Disabling this lock is safe because the subscriber list doesn't ever change
once the object is created
Write some tests for read performance
Add info to graphs so people other than me might understand it
Refactor ReadTests a bit so we can reuse some of the bits
Sketch out the same tests for writes
Implement Write tests
Get (f'ing crazy) perf results for writes
Add % speedup + medians