Y-axis turns of the character do not work well

[PenkaPlay (KingVentana)]

Character turns with any weapon do not work well and it is not clear why. When walking in the opposite direction with a weapon, the character is pushed a short distance and twitches very strongly. Please help me with this problem.

Rotation script:

RunService = game:GetService('RunService')
Players = game:GetService('Players')
Player = Players.LocalPlayer
Mouse = Player:GetMouse()
Char = Player.Character
if not Char then
	Player.CharacterAdded:Wait()
	Char = Player.Character
end

RootPart = Char:WaitForChild('HumanoidRootPart')

RunService.Stepped:connect(function()

	local MousePos = Mouse.Hit.p

	local lookToPosVector = Vector3.new(MousePos.X,RootPart.CFrame.Y,MousePos.Z)

	RootPart.CFrame = CFrame.new(RootPart.CFrame.p,lookToPosVector)

end)

The script is taken from here:

How do I make my player (R6) face towards my cursor (Y axis)

Title pretty much explains it all. I would like my entire character model to face towards my cursor with out messing up the characters animations. I would only like this to affect the Y axis, meaning that my character should only turn left and right, not up or down. I will also be using R6 for this. How would i do this? Help would be much appreciated!

[C_Sharper (Sharpie)]

Try updating the CFrame property of a BodyGyro instead, that might smoothen the look a bit. You can also remove its max Y torque so it only applies force on the X and Z axes.

[PenkaPlay (KingVentana)]

The character moves slightly differently than the direction of the camera

[heII_ish]

If you bind the rotation update to RenderStepped instead of Stepped it should eliminate the weird turning. Also you should disable Humanoid.AutoRotate so the humanoid doesn’t turn towards walking direction automatically.