I'm getting heavy lag after my city grows too large; it's almost unplayable.
Other than that its good (From what i have seen, anyway).
Seems the Seekers settlements have gotten too big. I can put a cap on their settlements which will prevent the problem from reoccurring, but that won't do anything to salvage that save, unfortunately.
There are some performance improvements coming in Bronze Age 2.4 that should help though. That will probably be next week.