WordPress.org

Will the BeLocal widget slow down my page load?

No. The widget is absolutely the last thing on your page to load and all data is fetched dynamically in the background.

How can I change the content/text/style etc of the widget?

Get an API key from here. This gives you your own private version of the widget.

On the Dashboard, go to Appearance > Widgets, expand the BeLocal widget and enter your API Key.