Fallout 4 has the same issue as Skyrim. The engine is tied to the framerate.

[katta2010]

Sad day for 144 hz users. Expect crazy physics, glitches, crashes - the same things from Skyrim really.

 

It really is a shame that Bethesda decided to release the game like this, especially considering this: https://twitter.com/bethesda/status/613008088824741888

 

Proof:

 

 

Sad day boys :sad:

Edited November 10, 2015 by katta2010

[Boombro]

It the same game engine. what did you expect.

Also are you sure you have screen tearing off? Fo4 setting cap to it 60.

[yunage]

Disabling it used to cause the physics bug. AFAIK the only surefire way to deal with that was to install an ENB and have the fixgamebugs setting enabled. No idea if the same thing will happen now, but it is worth considering.

[Boombro]

Try this https://www.reddit.com/r/fo4/comments/3s6ile/disable_vsync_for_zero_input_lag_and_limit_fps/