Load invisible widgets in background (background loading) and pause-refresh are two different features which can be used to tweak the performance of your app.
Background loading delays the initialization of the complete widget. However if you access the widget from the onInitialization script, the script will wait for each widget to be loaded. So you better not touch them there.
Pause-refresh disables server roundtrips for those widgets. You should enable this from the builder panel of the widget which you do not need to display on startup. Setting it in onInititalization is too late as they are already loaded the data.
Please read the performance recommendations in the developer handbook for more details.
Hopefully we can automate some of these common use cases in future.
Bluesky
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