Xamarin: First call to InitializeComponent slow - xamarin

Question

The problem is that the first call to a page's InitializeComponent is very slow. Thus the page transition animation is laggy for the first time. StackLayout with a few Labels and a Grid can take like 70 ms on my phone. I removed almost everything from the page and tried to find a bottle neck but it seems that even an empty grid adds a significant amount of time. So my full page takes something like 180 ms and when it's loaded for the first time there is almost no animation and it looks like a freezing app. Consecutive animations take like 15~20 ms.
Answering your potential questions: Yes, I have XAML compilation enabled. And yes, I've tried Release build but it doesn't help much.
Updated
I have added a button and a static grid to an items detail of default Xamarin application created in Visual Studio.
This is current content of the page:
<StackLayout Spacing="20" Padding="15">
<Label Text="Text:" FontSize="Medium" />
<Label Text="{Binding Text}" FontSize="Small"/>
<Label Text="Description:" FontSize="Medium" />
<Label Text="{Binding Description}" FontSize="Small"/>
<Button Text="{Binding Text}" />
<Grid RowSpacing="0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Label Grid.Row="0" Grid.Column="0" Text="Coins:" FontAttributes="Bold" />
<Label Grid.Row="0" Grid.Column="1" Text="111" HorizontalTextAlignment="End" />
<Label Grid.Row="0" Grid.Column="2" Text="Total coins:" FontAttributes="Bold" />
<Label Grid.Row="0" Grid.Column="3" Text="100000" HorizontalTextAlignment="End"/>
<Label Grid.Row="1" Grid.Column="0" Text="Gold:" FontAttributes="Bold" />
<Label Grid.Row="1" Grid.Column="1" Text="222" HorizontalTextAlignment="End" />
<Label Grid.Row="1" Grid.Column="2" Text="Table gold:" FontAttributes="Bold" />
<Label Grid.Row="1" Grid.Column="3" Text="120 " HorizontalTextAlignment="End"/>
</Grid>
</StackLayout>
And this is how I measure the time:
public partial class ItemDetailPage : ContentPage
{
public ItemDetailPage()
{
var start = DateTime.Now.ToUniversalTime().Millisecond;
InitializeComponent();
var end = DateTime.Now.ToUniversalTime().Millisecond;
Debug.WriteLine($"ItemDetailPage.InitializeComponent: {end - start}");
BindingContext = new ItemDetailViewModel();
}
}