Hello thank you for your Reply.

My Problem was that I had 2 excitations withing the Region which I now found out and fixed.

Unfortunately trying to model it as a non smooth circle didn't show the results I hoped for. I already tried that beforehand. I thought this would reduce calculations time but somehow when I did this the programm was computing way longer whenever I changed a variable. Sometimes it even crashed after Long loading times. So I might Need help with that now. What could cause Maxwell to compute longer when using simpler geometry?