Viewmodel stuttering/jittering

When i look around, my viewmodel shakes badly which makes me want to rip my eyes off and for all other players.
I have tried the smooth character-to-mouse turning thingy and it didnt help.
Is there any way to fix this jittery/stuttery movement?

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this post belongs in #help-and-feedback:scripting-support

Anyways, we need more information to be able to help.
Can you provide the code where you move the viewmodel?