GMSMapView Energy Impact

I Found the answer myself. It is related to GMSMarker.tracksViewChanges property.

Turning it to false for all added markers has released the CPU.

Make false of GMSMarker()'s object property tracksViewChanges & tracksInfoWindowChanges

let placeMarker = GMSMarker()
placeMarker.tracksViewChanges = false
placeMarker.tracksInfoWindowChanges = false

It will bringdown energy impact clock indictor.