Why does 3d unity look super choppy for me?

I've been trying to find out what's wrong for a few hours now and nothing.

If I make a new scene, add a plane, a cube, an FPSController prefab, build and run, then walk around the cube, it looks like I'm getting 30 fps. The edges of the cube looks like it's vibrating, even though it's rendering 1000+ fps.

Can this be fixed? Is it something to do with the FPSController prefab that makes everything look horrible when you move?

I'm new to this and I'm just trying to make a simple tool for practicing FPS aim.

 

Try building out an executable standalone of your project (check this out for a how-to). I've had a few issues in the past where things are a bit choppy in the editor but are just fine in the standalone (likely due to other stuff running in the editor at the same time as your game).