I can't know why my plugin is too laggy... (About String)

Help and Feedback Scripting Support
#1 
--------------Create-----------------------------
local toolbar = plugin:CreateToolbar("PV")
local UpdateButton = toolbar:CreateButton("Update", "Update public values in scripts.", "rbxassetid://6808848852")
local PV = game.ServerStorage.Plugins.PV
----------------Run-------------------------
function RemoveFirstLine(ReqString:string)
	return string.sub(ReqString,string.find(ReqString,"\n",1),-1)
end

function DestroyAnnotation(ReqString:string)
	local lines =string.split(ReqString,"\n") 
	for i,v in pairs(lines) do 
		lines[i] = v:gsub("%-%-+.+","") 
	end 
	return table.concat(lines," ")
end

local Running = false

UpdateButton.Click:Connect(function()
	if not Running then
		Running = true
		print("Start Updating")
		local PublicSourceWithoutAnnotation = DestroyAnnotation(PV.Public.Source)
		do --All Script--
			local Research = {workspace,game.ServerStorage,game.ServerScriptService,game.ReplicatedStorage,game.StarterGui,game.StarterPlayer}
			local new = PublicSourceWithoutAnnotation..string.format("\n")
			for n1,v1 in pairs(Research) do
				for n2,Script in pairs(v1:GetDescendants()) do
					if (Script:IsA("Script") or Script:IsA("ModuleScript")) and not Script:IsDescendantOf(game.ServerStorage.Plugins) then
						Script.Source = new.. RemoveFirstLine(Script.Source)
						wait(.5)
					end
				end
			end
		end
		print("Update Completed")
		Running = false
	end
end)

It change the first line of all scripts in my game to the code that i want to write in scripts.
But IT’S TOO LAGGY
I can’t know the cause… :frowning:
One run about a long script takes 8.082389831543e-05 seconds.
However, running about each scripts every 0.5 seconds causes the computer to melt.
Could you help me?