We are seeing confirmation times that stretch into the 10's of minutes and difficulties that spike above 7k (difficulty is typically 1.2k).
One of the selling points of NYC is fast 30 second confirmations, if we don't do something to mitigate this the coin will likely be damaged.
The NYC dev team is looking into changes to the difficulty mechanism but that will take some time to test and deploy. The NYC community has been encouraging our community's non-scrypt miners (GPU, SHA-256 and X11) to mine at Prohashing and take payouts in NYC at the same time we are asking scrypt miners to help by moving some hashrate to other NYC pools.
Cheers!
Moonshot