ListLag.swift

import SwiftUI
import Combine

struct ContentView: View {
  @State var items: [Int] = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
  
    var body: some View {
      List {
        ForEach(items, id: \.self) { item in
          Text("Item: \(item)")
        }
      }
      .onReceive(Timer.publish(every: 0.8, on: .main, in: .common).autoconnect()) { _ in
        withAnimation {
          items.insert(Int.random(in: Int.min..<Int.max), at: 0)
        }
      }
    }
}