Is there a way to make this less laggy?

It works perfectly fine, but there is a bunch of lag when the script runs The script is inside a door and is only supposed to run once. It teleports you outside of the building, it sets anchored to false if there is a model inside of the model, it breaks glass, and unanchores everything else.

debounce = false

script.Parent.Touched:connect(function(part)
	local h = part.Parent:FindFirstChild("Humanoid")
	if h then
		local plr = game.Players:GetPlayerFromCharacter(h.Parent)
		if plr and debounce == false then
			debounce = true
			wait()
			local clone = game.ServerStorage.ScreenGui:Clone()
			clone.Parent = plr.PlayerGui
			for i = 1,0,-.1 do
				wait()
				clone.Frame.BackgroundTransparency = i
			end
			plr.Character.Torso.CFrame = CFrame.new(155.3, 4.3, -28.1) -- teleporting
			wait()
			for i = 0,1,.1 do
				wait()
				clone.Frame.BackgroundTransparency = i
			end
			wait(1)
			local c = workspace.Building1:GetChildren()
			for i,v in pairs(c) do
				if v.ClassName == "Model" then
					local b = v:GetChildren()
					for i,_ in pairs(b) do
						_.Anchored = false -- unanchores every thing inside the model of the model(building1)
					end
				elseif v.Size == Vector3.new(10,0.2,10) then --checks if v is glass by checking size of a part
					wait()
					v.Parent = game.ServerStorage--sets parent
					local clone = game.ServerStorage.BGlass3:Clone()
					clone:SetPrimaryPartCFrame(v.CFrame)
					clone.Parent = workspace
				else
					v.Anchored = false--unanchores everything else
				end
			end
		end
	end
end)

the scripts purpose is supposed to simulate a building being blown up. If you want to see the lag: http://www.roblox.com/games/73660217/Personal-Server

Yes, probably.. So what i'm thinking is your wait's are to small so, double the wait time.

wait(5)
...
...
...
wait(5)
...
...
...
-- Coding..