Here are two videos showing comparison between market monitoring using update betfair api update requests and market/order streaming technology.
I opened for monitoring 64 markets, 40 today’s horse racing win markets and 24 Euro 2016 football match odds markets. I set the update period to 50 mili-seconds for active market and 10 seconds for passive markets.
Using normal way of market data updating, bfexplorer sends about 48 Kbps and receives 288 Kbps with peaks to 500 Kbps.
Using market/order streaming technology, bfexplorer receives only changes to market data.
What you would like to use?