Swift Charts real time update LineMark is slow

Hello

I'm currently working on a new gui in my App and I wanted to use the new Swift Charts Framework. It's very beautiful but I'm struggling with performance here. I want to draw a LineMark in realtime. I have code that create me a point every 25ms over a runtime of about 10 seconds. So I have round about 400 Samples which should drawn in realtime to the Chart so I can see the LineMark being drawn.

On a first try I used a Binding to the Chart to update the Chart and after 2-3 seconds the ui becomes unresponsive and started lagging. I'm currently using an ObservableObject and the .drawingGroup modifier to improve the Performance. This Helps but it's not perfect.

Is there a better way to increase the Performance or what's the way to have a realtime drawing line graph?

Here's the Code I use:

struct ChartView: View {
    @ObservedObject public var model = FNMeasurementModel()
    private let gradient = LinearGradient(gradient: Gradient (colors: [.mint.opacity(0.1),.mint.opacity(0.0)]), startPoint: .top, endPoint: .bottom)
    var body: some View {
        Chart() {
            ForEach(model.data) { item in
                LineMark(
                    x: .value("Ratio", item.ratio ?? .zero),
                    y: .value("Speed", item.speed ?? .zero)
                )
                .interpolationMethod(.catmullRom)
                .foregroundStyle(.mint)
                
                AreaMark(
                    x: .value("Ratio", item.ratio ?? .zero),
                    y: .value("Speed", item.speed ?? .zero)
                )
                .foregroundStyle(gradient)
            }
        }
        .chartXAxis{
            AxisMarks(position: .bottom, values: stride(from: 0, to: 1.0, by: 0.2).map { $0 })
        }
        .chartXScale(domain: 0...1.0)
        .chartYScale(domain: 0...100)
        
        .frame(height: 100)
        .padding(.vertical, 5)
    }
}

The ObservableObject

class FNMeasurementModel: ObservableObject {
    @Published public var data: [FNMeasurementResult] = []
    func append(_ sample: FNMeasurementResult) -> Void { data.append(sample) }
    func reset() -> Void { data.removeAll() }
}

My Result Type

public class FNMeasurementResult: Identifiable {
    public var id: UUID = UUID()
    public var ratio: Double?
    public var speed: Double?
    
    public init(speed: Double? = nil, ratio: Double? = nil) {
        self.ratio = ratio
        self.speed = speed
    }
}