An Inspector will respond when events of interest occur by refreshing its view. The default is to refresh on each event. Changing the refresh rate to a higher number will result in fewer refreshes. Particularly when training neural networks, you may wish to set a higher value to reduce the time it takes to train the network.
If for example, you are inspecting a data import object with 100 records in the file, changing the refresh rate to 100 will cause the inspector to refresh every time all records from the file are processed.