How can I optimize this code?

Help and Feedback Scripting Support
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#1

How can I optimize this code?

Code 
function self.lookat()
		if not self.rendering then return end
		local model = self.model
		if not model then return end
		local MaxDistance = 100
		local HeadVertFactor = 0.6
		local BodyHorFactor = 0.5
		local BodyVertFactor = 0.4
		local UpdateSpeed = 0.3
		local HeadHorFactor = 1
		local NeckOrgnC0 = self.baseneckc0	--[Get the base C0 to manipulate off of.]
		local WaistOrgnC0 = self.basewaistc0
		local Torso = self.torso
		local Head = self.head
		local Neck = self.neck
		local Waist = self.waist
		local IsR6 = false
		if NeckOrgnC0 and WaistOrgnC0 and Torso and Head and Neck and Waist then
			local InRange = false
			local PCharacter = Player.Character
			if PCharacter then
				local HRP0 = model:FindFirstChild("HumanoidRootPart")
				local HRP = PCharacter:FindFirstChild("HumanoidRootPart")
				local PHead = PCharacter:FindFirstChild("Head")
				if HRP and HRP0 then
					InRange = math.abs((HRP0.Position-HRP.Position).Magnitude) <= MaxDistance
				end
				if InRange and PHead and not self.gettinghit and not self.emoting then
					local TrsoLV = Torso.CFrame.lookVector
					local HdPos = Head.CFrame.p
					if Neck or Neck and Waist then
						local Point = PHead.CFrame.p
						local Dist = (Head.CFrame.p-Point).magnitude
						local Diff = Head.CFrame.Y-Point.Y
						local NewNeckC0 = NeckOrgnC0*CFrame.Angles(-(math.atan(Diff/Dist)*HeadVertFactor), (((HdPos-Point).Unit):Cross(TrsoLV)).Y*HeadHorFactor, 0)
						local NewWaistC0 = WaistOrgnC0*CFrame.Angles(-(math.atan(Diff/Dist)*BodyVertFactor), (((HdPos-Point).Unit):Cross(TrsoLV)).Y*BodyHorFactor, 0)
						if Waist.C0 ~= NewWaistC0 then
							Neck.C0 = Neck.C0:lerp(NewNeckC0, UpdateSpeed/2)
							Waist.C0 = Waist.C0:lerp(NewWaistC0, UpdateSpeed/2)
						end
					end
				else
					if Waist.C0 ~= WaistOrgnC0 then
						Waist.C0 = Waist.C0:lerp(WaistOrgnC0, UpdateSpeed/2)
						Neck.C0 = Neck.C0:lerp(NeckOrgnC0, UpdateSpeed/2)
					end
				end
			else
				if Waist.C0 ~= WaistOrgnC0 then
					Waist.C0 = Waist.C0:lerp(WaistOrgnC0, UpdateSpeed/2)
					Neck.C0 = Neck.C0:lerp(NeckOrgnC0, UpdateSpeed/2)
				end
			end
		end
	end
#2

You should change this post’s topic to #help-and-feedback:code-review.

#3

what self.function? what that as i know self that for module, like this
local module = {}

function module:GetData()
return 1
end

function module:Function()
return self:GetData()
end)

but if you use . not : you cant use self method

like this

function module.Function()
return self:GetData() – this will be error so u have to change it into return module:GetData()
end)

return module