Dose List in SwiftUI reuse itself while scrolling?

I am a beginner in SwiftUI. I try to find some new way to build a page same as UITableView.

Some said that List does reuse its cell, but I tried these following code than make the app so laggy.

So, the only way to interacting TableView is use representable ?

 struct TestView: View {

    var body: some View {
        NavigationView {
               List {
                    ForEach(0..<1000000, id: \.self) { key in
                        Text("\(key)")
                    }
                }
        }
    }
}