Is there any way that I can improve this Pathfinding AI for a better server performance?

So this is the script that I created for the AI

local Pathfinding = game:GetService("PathfindingService")
local NPC = script.Parent
local Hum = NPC.Harmoid
local RootPart = NPC.HumanoidRootPart
local RunAnim = Hum:LoadAnimation(NPC.RunAnim)
local IdleAnim = Hum:LoadAnimation(NPC.IdleAnim)
local RootChase = nil
local HumChase = nil
local Plr = nil
local PlayerList = game.Players
local function Move()
	local pathfinder = Pathfinding:FindPathAsync(RootPart.Position,RootChase.Position)
		local way = pathfinder:GetWaypoints()
		for i,v in pairs(way) do
			Hum:MoveTo(v.Position)
			Hum.MoveToFinished:wait()
		end
end
local function Mag(point)
	return (RootPart.Position - point.Position).magnitude
end
IdleAnim:Play()

while true do wait(5)
	local Lowest = math.huge
	for _,plr in pairs(PlayerList:GetPlayers()) do
		if plr.Character then
			local pchar = plr.Character
			local phum = pchar.Humanoid
			if phum.Health > 0 then
				local proot = pchar.HumanoidRootPart
				local Mager = Mag(proot)
				if Mager<Lowest then
					Lowest = Mager
					RootChase = proot
					HumChase = phum
					Plr = plr
				end
			end
		end
	end
	RunAnim:Play()
	while Plr do
		print('Activating!')
		Move()
	end
	RunAnim:Stop()
end

That's everything :P

First thing is: At the printing function. It activates more than 30 times O_O

Second thing is: at the Hum.MoveToFinished:wait() part it has a slow delay and glitchy.