AFAIK, there's a 10 minute cache.  How long of a delay are you seeing? 

If you want something a little quicker, you can pull from my feed here (I plan on making it a little prettier eventually):

http://coinflow.co/livetrades

There's an SSE stream at /livetradeevents/ which aggregates data from assbot and assetbot on IRC.   It's not the 'definitive' source since it isn't the API (I use API data in the charts for BTCTC, not assbot data), but it's still reliable.