Yesterday got it working with DoTween. The last update broke some stuff and I could fix the slowdowns too. Soon the game is ready for the windows phone release;)
I am glad and hope I can get the tizen also working. Last but not least the ipad and iOS version is coming soon. I need to renew my dev account and testing.
An name change will be made soon too.
The game is far from perfect now but I think its good time to release it soon.