ListView is slow to load, any performance guidelines?

Hi I am using a basic Listview in forms with hard coded data in a list. When navigating to the page which contains the listview, it takes a nice 1-2 seconds to load. Any specific reason why this is happening?

Code:

protected override void OnAppearing ()
        {
            base.OnAppearing ();
            //Get Menuitems for current menu
            MenuListViewModel.MenuItems= Task.Run (async () => await UCommerceServices.GetMenuItemsForCategory(MenuListViewModel.ParentId)).Result;
            foreach (var menuItem in MenuListViewModel.MenuItems) {
                menuItems.Add (menuItem);
            }
            activityIndicator.IsVisible = false;
        }

View:

<?xml version="1.0" encoding="UTF-8"?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" x:Class="Pizza4U.MenuListPage">
    <ContentPage.Content>
     <Grid VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand">
        <ListView x:Name="listView">
            <ListView.ItemTemplate>
                <DataTemplate>
                    <ViewCell>
                        <StackLayout BackgroundColor="#eee" Orientation="Vertical">
                            <StackLayout Orientation="Horizontal">
                                <Image Source="{Binding ImageUrl}" />
                                <Label Text="{Binding Title}" TextColor="#f35e20" />
                                <Label Text="{Binding Description}" HorizontalOptions="EndAndExpand" TextColor="#503026" />
                            </StackLayout>
                        </StackLayout>
                    </ViewCell>
                </DataTemplate>
            </ListView.ItemTemplate>
        </ListView>
          <ActivityIndicator IsVisible="true" IsRunning="true"
            VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand" x:Name="activityIndicator" />
        </Grid>
    </ContentPage.Content>
</ContentPage>

Note that the GetMenuItemsForCategory is retrieving a list which is currently hardcoded.

Thanks for your assistance.

Shaun