To minimise map load times, you can set layer groups to not display on map load. The user can enable layers from the map legend.
This feature is particularly useful if you have many layers and want to control what map users see first – the essential data – and let the user explore further by activating other layers.
When you create a new layer group, the Layer group visible on map load option is unchecked and this layer group will be switched off when a user first views the map. Simply tick or uncheck the checkbox in each layer group’s header to choose which layers will be active or inactive on first load.