Jittering framerate

This thing drives me crazy )

I have 100 fps in the editor and approx 800 fps in stand-alone build and nevertheless my game avatar (a box) moves with jittering. It looks like I have approx. 3-5 small lags every second.

I have moved camera following code to the LateUpdate. My box moves like:

 transform.Translate( new Vector3(
           x * 5 * Time.deltaTime,
           0,
           0 ), Space.World );

I have tried to shutdown as much process on my PC as possible. Still framerate is jittering.

Anybody experienced something like this?

I noticed this kind of jittering in one of my projects before and it had a lot to do with my camera's follow script. I by changing the damping on the camera (how strictly it followed my character) and it completely fixed the problem. For me having a camera with a very strict follow script, caused the screen to be very jittery and erratic. Hope this helps.

If you're using rigidbody by any chance, be sure to set the interpolation to "Interpolate" - this fixed some jerky weirdness for me.