How can I optimize this head-following camera system further?

Help and Feedback Scripting Support
#1

Hey. I was making code where a player’s head will follow it’s camera, as well as replicate it to the server. I know I’m not the best programmer, and there is definitely room for improvement in terms of optimization. Right now it works with two modules, one for the client and one for the server.
CLIENT:

local headFollow = {}

--// Constants
local services = require(game:GetService("ReplicatedStorage"):WaitForChild("Common"):WaitForChild("Services"))

local common = services.replicatedStorage:WaitForChild("Common")
local clientModules = common:WaitForChild("ClientModules")
local utility = common:WaitForChild("Utility")
local remotes = common:WaitForChild("Remotes")

local headMovement = remotes:WaitForChild("HeadMovement")

local characterUtil = require(utility:WaitForChild("CharacterUtility"))

local player = services.players.LocalPlayer

local camera = workspace.CurrentCamera

headFollow.updateTask = nil
headFollow.C0 = nil

local CFnew, CFang = CFrame.new, CFrame.Angles
local asin = math.asin

--[[ Main ]]--

function headFollow.characterSpawned()
	
	if headFollow.updateTask then
		headFollow.updateTask:Disconnect()
	end
	
	local character = characterUtil.getCharacter(player)
	local root: BasePart = character:FindFirstChild("HumanoidRootPart")
	local neck: Motor6D = characterUtil.getObj("Neck", character, true)
	local yOffset: number = neck.C0.Y
	
	local lastUpdate = tick()
	
	headFollow.updateTask = services.runService.RenderStepped:Connect(function(deltaTime)
		
		local cameraDirection = root.CFrame:ToObjectSpace(camera.CFrame).LookVector
		
		if character and root and neck then
			
			headFollow.C0 = CFnew(0, yOffset, 0) * CFang(3 * math.pi / 2, 0, math.pi) * CFang(0, 0, -asin(cameraDirection.X)) * CFang(-asin(cameraDirection.Y), 0, 0)
		end
		
		if tick() - (lastUpdate + deltaTime) >= 0.1 then
			
			headMovement:FireServer(headFollow.C0)
			
			lastUpdate = tick()
		end
	end)
end

function headFollow.updatePlayerNeck(characterToUpdate, neckCFrame)
	if characterToUpdate and neckCFrame then
		
		local neck: Motor6D = characterUtil.getObj("Neck", characterToUpdate, true)
		
		if neck then
			--neck.C0 = neckCFrame
			
			if neck.C0 == neckCFrame then
				return
			end
			
			local tween = services.tweenService:Create(neck, TweenInfo.new(0.25), {C0 = neckCFrame})
			tween:Play()
		end
	end
end

function headFollow.main()
	
	warn("| HEAD MOVEMENT CLIENT CALLED |")
	
	player.CharacterAppearanceLoaded:Connect(headFollow.characterSpawned)
	remotes:WaitForChild("HeadMovement").OnClientEvent:Connect(headFollow.updatePlayerNeck)
end

headFollow.main()

return headFollow

SERVER:

local headFollow = {}

--// Constants
local services = require(game:GetService("ReplicatedStorage"):WaitForChild("Common"):WaitForChild("Services"))

local common = services.replicatedStorage.Common
local utility = common.Utility
local remotes = common.Remotes

local characterUtil = require(utility.CharacterUtility)

function headFollow.getMagnitude(player1, player2)
	local character1 = characterUtil.getCharacter(player1)
	local character2 = characterUtil.getCharacter(player2)
	
	if not character1 or not character2 then return end
	
	return (character1:GetPivot().Position - character2:Pivot().Position).Magnitude
end

function headFollow.updateHead(player, neckCFrame)
	
	remotes.HeadMovement:FireClient(player, characterUtil.getCharacter(player), neckCFrame)
	
	for _, playerToSend in pairs(services.players:GetPlayers()) do
		if playerToSend ~= player and characterUtil.getCharacter(player) and headFollow.getMagnitude(player, playerToSend) and headFollow.getMagnitude(player, playerToSend) <= 30 then
			remotes.HeadMovement:FireClient(playerToSend, characterUtil.getCharacter(player), neckCFrame)
		end
	end
end

function headFollow.main()
	
	warn("| HEAD FOLLOW SERVER CALLED |")
	
	remotes.HeadMovement.OnServerEvent:Connect(headFollow.updateHead)
	
end

headFollow.main()

return headFollow

Thanks for reading this post! :smile: