I have jitter in my Godot projects. Did some test and reduced it to the basics.
I included a simple sample project with a moving kinematicbody2D that moves with:
move_and_collide(Vector2(120,0) * delta) in _physics_process(delta)
What i see is 3 intervals where the sprite jitters, near frame 71, 188 and 304 (and continueing onward).
The profiler says the frame time is 0.073s on those frame numbers.

I have tried to solve this with running fullscreen, exporting without debug, putting the move_and_collide in _process instead. Nothing works.
What could be wrong?
Im using Godot 3.1.1 on Windows 10