UE4 - Simply adding an Spring arm to a flying ship, makes it quake and shake, why? image attached

Hi, i wanted to smooth the movement of the camera from the default flying Project… but as son as i add an spring arm, camera lag and camera rotation…. the ship starts to shake, quake or do any type of trembling movements, specially when flying faster… why and what can i do to fix it?

Please help with BP images if possible!