I'm working with a SwiftUI view that contains a Map with numerous Annotations (ranging from 30 to 100). Alongside these, there's a specific annotation that changes based on the user's selection from a list. The list selection might change rapidly, possibly up to 10 times a second. When the selected annotation is updated, it seems that all the annotations on the map view get reloaded. This results in high CPU usage and a significant drop in screen refresh rate, especially during rapid selection changes. How can I optimize this to only reload the selected annotation in the map view instead of all annotations when the selectedAnnotation is changed? Here's the relevant pseudo code: @State var annotations: [MKAnnotation]() @State var selectedAnnotation: MKAnnotation? Map { ForEach(annotations.indices, id: \.self) { idx in let anno = annotations[idx] Annotation("", coordinate: anno.coordinate) { Circle() .stroke(.black, lineWidth: 4) .fill(.white) .frame(width: 8, height: 8) } } if let selectedAnnotation { Annotation("", coordinate: selectedAnnotation.coordinate) { Circle() .stroke(.orange, lineWidth: 4) .fill(.white) .frame(width: 16, height: 16) } } else { EmptyMapContent() } }