Whats the best way to make a npc follower?

Im trying to make an npc that will just walk behind the player and follow them around. I tried using pathfinding to do this but it seems to be really janky and chopy. Heres the code for it :

--Services
local PathFindingService = game:GetService("PathfindingService")

--Variables
local targetCharacter = script.Parent.Parent.Parent
local target = targetCharacter:WaitForChild("HumanoidRootPart")
local localCharacter = script.Parent.Parent
local localHumanoid = localCharacter:WaitForChild("Humanoid")
local localRoot = localCharacter:WaitForChild("HumanoidRootPart")

--Functions
function moveTo()
	print("Moving to player")
	local pos = target.Position + target.CFrame.LookVector * -2 + target.CFrame.RightVector * 2
	localHumanoid:MoveTo(pos)
end

function drawWaypoint(point)
	local part = Instance.new("Part", workspace)
	part.BrickColor = BrickColor.new("White")
	part.Shape = "Ball"
	part.Material = "Neon"
	part.Transparency = 0.25
	part.Anchored = true
	part.Locked = true
	part.CanCollide = false
	part.Size = Vector3.new(1,1,1)
	part.Position = point.Position
	game:GetService("Debris"):AddItem(part,1)
end

function generatePath()
	print("Generating Path")
	local path = PathFindingService:CreatePath()
	path:ComputeAsync(localRoot.Position ,target.Position + target.CFrame.LookVector * -2 + target.CFrame.RightVector * 2)
	return path
end

function moveAlongWaypoints(path)
	print("Moving along waypoints")
	local wayPoints = path:GetWaypoints()
	for _,waypoint in pairs(wayPoints)do
		print("Next waypoint")
		drawWaypoint(waypoint)
		localHumanoid:MoveTo(waypoint.Position)
		localHumanoid.MoveToFinished:Wait()
	end
end

function main()
	local path = generatePath()
	if path ~= nil and path.Status == Enum.PathStatus.Success then
		print("Path was Successfully made")
		moveAlongWaypoints(path)
	else
		warn("Failed to generate path") 
	end
end

--Loops main function
while true do 	
	print("Running Main")
	main()
	game:GetService("RunService").Stepped:Wait()
end

If some one could fix the code to make the movement smoother or just tell me a better way I would apreaciate it alot :)

https://gyazo.com/3e0e075f6b6d6f740ba2e5d302e55b8a