NPC Stuttering When Getting Close to Player...Can't figure out why..? Please help!

I'm trying to make a game, the AI enemy is programmed to go to a random part position in a folder in the workspace and attack a player once they are enough distance away, but when the enemy gets close to my player, the AI stutters, basically stopping for a bit, then starting, then stopping, rinse and repeat. Any help? Here's the script..

local reaper = script.Parent
local humanoid = reaper.Humanoid
reaper.PrimaryPart:SetNetworkOwner(nil)

local function canSeeTarget(target)
	local origin = reaper.HumanoidRootPart.Position
	local direction = (target.HumanoidRootPart.Position - reaper.HumanoidRootPart.Position).unit * 40
	local ray = Ray.new(origin, direction)
	
	local hit, pos = workspace:FindPartOnRay(ray, reaper)
	
	
	if hit then
		if hit:IsDescendantOf(target) then
			return true
		end
	else
		return false
	end
end

local function findTarget()
	local players = game.Players:GetPlayers()
	local maxDistance = 40
	local nearestTarget
	
	for index, player in pairs(players) do
		if player.Character then
			local target = player.Character
			local distance = (reaper.HumanoidRootPart.Position - target.HumanoidRootPart.Position).Magnitude
			
			if distance < maxDistance and canSeeTarget(target) then
				nearestTarget = target
				maxDistance = distance
			end
		end
	end
	
	return nearestTarget
end

local function getPath(destination)
	local PathfindingService = game:GetService("PathfindingService")
	
	local pathParams = {
		["AgentHeight"] = 9.5,
		["AgentRadius"] = 4,
		["AgentCanJump"] = false
	}
	
	local path = PathfindingService:CreatePath(pathParams)
	
	path:ComputeAsync(reaper.HumanoidRootPart.Position, destination.Position)
	
	return path
end

local function attack(target)
	local distance = (reaper.HumanoidRootPart.Position - target.HumanoidRootPart.Position).Magnitude

	if distance > 2 then
		humanoid:MoveTo(target.HumanoidRootPart.Position)
	else
		local attackAnim = humanoid:LoadAnimation(script.Attack)
		attackAnim:Play()
		target.Humanoid.Health = 0
	end
end

local function walkTo(destination)
	
	local path = getPath(destination)
	
	if path.Status == Enum.PathStatus.Success then
		for index, waypoint in pairs(path:GetWaypoints()) do
			local target = findTarget()
			if target and target.Humanoid.Health > 0 then
				print("TARGET FOUND", target.Name)
				attack(target)
				break
			else
				print("Moving to ", waypoint.Position)
				humanoid:MoveTo(waypoint.Position)
				humanoid.MoveToFinished:Wait()
			end
		end
	else
		humanoid:MoveTo(destination.Position - (reaper.HumanoidRootPart.CFrame.LookVector * 10))
	end
end

function patrol()
	local waypoints = workspace.waypoints:GetChildren()
	local randomNum = math.random(1, #waypoints)
	walkTo(waypoints[randomNum])
end

while wait(0) do
	patrol()
end

The enemy is r6, is it because of the character? I have no clue...

I feel this part of your code is wrong - 013

if hit then

014 if hit:IsDescendantOf(target) then 015 return true 016 end 017 else 018 return false 019 end 020 end

because you are repeating the "if hit" command twice.

I hope this helped, please friend request me on roblox if you have further questions.