Hi Ken,

You can find some more details on what this is on this help page.

The default interval when using polling is 1000ms (1 second).
There aren't really any valid reasons to increase the polling, as it's unlikely that the users working with the system will notice any difference.

You could potentially decrease the polling interval, to save some network bandwidth, but the difference will be negligible and would only make sense when connecting to your DataMiner system over a metered connection.