Not sure if i'm doing something wrong but in a demo project i'm getting a very slow performance during transitions.

Code:
    <toolkit:TransitionService.NavigationInTransition>
        <toolkit:NavigationInTransition>
            <toolkit:NavigationInTransition.Backward>
                <toolkit:SwivelTransition Mode="BackwardIn"/>
            </toolkit:NavigationInTransition.Backward>
            <toolkit:NavigationInTransition.Forward>
                <toolkit:SwivelTransition Mode="ForwardIn"/>
            </toolkit:NavigationInTransition.Forward>
        </toolkit:NavigationInTransition>
    </toolkit:TransitionService.NavigationInTransition>
    <toolkit:TransitionService.NavigationOutTransition>
        <toolkit:NavigationOutTransition>
            <toolkit:NavigationOutTransition.Backward>
                <toolkit:SwivelTransition Mode="BackwardOut"/>
            </toolkit:NavigationOutTransition.Backward>
            <toolkit:NavigationOutTransition.Forward>
                <toolkit:SwivelTransition Mode="ForwardOut"/>
            </toolkit:NavigationOutTransition.Forward>
        </toolkit:NavigationOutTransition>
    </toolkit:TransitionService.NavigationOutTransition>
The transition works fine but when doing them from and into other Panoramas, after the transition finishes, it takes like 1 sec to show the panorama, it looks like a delay.
I did try CacheMode="BitmapCache" but no luck.

Version: WP7.1

panorama code:
Code:
<Grid x:Name="LayoutRoot" CacheMode="BitmapCache">
        <controls:Panorama Title="this is a long title for a big amount of items..." CacheMode="BitmapCache">
            <controls:Panorama.Background>
                <ImageBrush ImageSource="backgroundIMG.jpg" />
            </controls:Panorama.Background>
            <!--Panorama item one-->
            <controls:PanoramaItem Header="item1" Background="Aqua" Opacity="0.4" CacheMode="BitmapCache">
                <Grid/>
            </controls:PanoramaItem>
            <controls:PanoramaItem Header="item2"  Background="Blue"  Opacity="0.4" CacheMode="BitmapCache">
                <Grid/>
            </controls:PanoramaItem>
            <controls:PanoramaItem Header="item3"  Background="Green"  Opacity="0.4" CacheMode="BitmapCache">
                <Grid/>
            </controls:PanoramaItem>
            <controls:PanoramaItem Header="item4"  Background="Lime"  Opacity="0.4" CacheMode="BitmapCache">
                <Grid/>
            </controls:PanoramaItem>
            <controls:PanoramaItem Header="item5"  Background="DarkOrange"  Opacity="0.4" CacheMode="BitmapCache">
                <Grid/>
            </controls:PanoramaItem>
        </controls:Panorama>
    </Grid>
I did read that Opacity will slow down the transitions, i did already try to take out the opacity and it didn't change a thing.

Am i doing something wrong?