Latency means delay. All connections to different hosts are going to have different latencies; that's pretty normal. Also, measured latency typically varies even to a given host as network paths and traffic affect delivery time. It is possible that TCP latency means something special in this case, but I don't know what that would be.
If you look further down under "Network Activity", you'll see process ID 2272 listed again, with a connection to a second host. If you sum all of the connections for process 2272, I suspect you will get the total under "Processes with Network activity".