I just checked, the framerate looks fine to me. It's just the way the game looks, anyway, so it's probably just that by default, the game's field of view/camera system is always slightly jerky.
New Slime Rancher update is, so have another video for Slime Rancher, as a continuation of that one old let's play I did. I decided to not make a thumbnail for this cause I really liked what YouTube choose for the video.