It was a slight typing error my bad, yes it starts to move from 30 up to 130 just randomly. I don't know what this is caused by. I never had this problem with earlier versions. Just the camera was "stuck" sometimes and I had to restart the program. Actually last version that worked without any issues was 10.9.[...].0 but since version 11 nothing will run fine anymore. I didn't changed my system parts or installed different versions of XNA framework.
My GPU is ATI Radeon HD 3850 - a kinda older one but still performs fine.
would be nice if you could help.