Dissapointed with German ovens!

Even though our oven looks like a normal oven, just mini, it doesn't cook like one. German ovens are very different from what you are used to in the states. I don't even know what it is that is different, they just are! Food definitely doesn't bake the way it is supposed to. I have had a lot of things come up not so pretty!! I've tried chocolate chip cookies and they take longer and are super flat. I've done cheesecake and cupcakes and the tops never look good. I've tried angel food cake, and it came out huge and the top was burnt.

I don't think I do anything wrong, it's just these not so wonderful ovens!! Nonetheless... it all still tastes good! I haven't had any complaints from Jay yet!!