Hi Hana
Welcome little Cracker, you are a very pretty little girl
I wouldn't worry too much about her behaviour Hana, when i had my girls, Sweet & Sour, Sour was the one who would never run in her ball and be very timid. Sweet little natures they have, don't get me wrong, but as you say, would just sit on my hand and not bother moving, call it lazy maybe
As Souffle mentioned, I wouldn't put her in her ball until she is a bit more settled with being handled. It's not nice to see them just sitting in one spot in their ball and i fully know where you are coming from. You want them so much to be running around and enjoying their freedom!
Please let us know how you get on with your taming, as always it's just patience