That is strange and not how it should work, if you can provide a link i can debug it? However you also have many map options under GD > Settings > General > (show advanced). You can set the map to lazy load on scroll, or even disable maps entierly.
Just let me know if you need furhter help 🙂
Maps API is set to automatic with lazy load off. Happy to provide a link – can I share it privately with you?