Viewmodel lags back while walking and playing animation?

Help and Feedback Scripting Support
,
#1

I wrote a sway script for walking and turning. Somehow when the firing animation plays, the gun lags back? (I have no idea how to describe this) I am looking for an explanation and a fix, if even possible. Video and code is shown down below.

Video:

Code:

local ToObjCFrame = Camera.CFrame:ToObjectSpace(lastCamCF)
	local X,Y,Z = ToObjCFrame:ToOrientation()
	lastCamCF = Camera.CFrame
	if IsAiming ~= true then
		SwayCF = SwayCF:Lerp(CFrame.new(
			math.sin(ToObjCFrame.X) * currentMotionSwayAMT,
			0,
			math.sin(ToObjCFrame.Z) * currentMotionSwayAMT),
			.1)
	else
		SwayCF = SwayCF:Lerp(CFrame.new(
			math.sin(ToObjCFrame.X) * currentMotionSwayAMT,
			0,
			0),
			.1)
	end
	
	AngularSwayCF = AngularSwayCF:Lerp(CFrame.Angles(
		math.sin(X) * currentAngularSwayAMT,
		math.sin(Y) * currentAngularSwayAMT,
		math.sin(X) * currentAngularSwayAMT),
		.1)

I will give out as much info as you need. Thanks