whenever pressing F i lag why is that?

I made a skill move and whenever i press F i lag and the output has too many errors but not really an error to me, they are normal. But it was then i put wait() to Explosion:Destroy() So i really need help out there. and i don't know the reason why i lag and it might be the script. Need help just give me a little hint.

script.Parent.OnServerEvent:Connect(function(plr)
	local Slash = game.ReplicatedStorage.Skill.SPPTS:Clone()
	Slash.Parent = workspace
	Slash.CanCollide = false
	Slash.Anchored = false
	Slash.CFrame = plr.Character.HumanoidRootPart.CFrame * CFrame.new(1,0,3) * CFrame.fromEulerAnglesXYZ(4.7,1.6,14.1)
	
	Slash.Touched:Connect(function(hit)
		if hit.Parent:FindFirstChild("Humanoid") and hit.Parent.Name ~= plr.Name then
			local Explosion = game.ReplicatedStorage.Skill.SPPTS:Clone()
			Explosion.Parent = workspace
			Explosion.CFrame = Slash.CFrame
			Explosion.CanCollide = false
			Explosion.Anchored = true
			Slash:Destroy()
			hit.Parent.Humanoid:TakeDamage(0)
			for i = 1,18 do
				wait(.05)
				Explosion.Size = Explosion.Size + Vector3.new(3,3,3)
				Explosion.Transparency = Explosion.Transparency + 0
	            Explosion.Touched:connect(function(part)
					local debounce = true
					  local Humanoid = part.Parent:findFirstChild('HumanoidRootPart')
					     if Humanoid then						
						debounce = false					
						Humanoid.Anchored = true							
						wait(0.1)						
						debounce = true						
						local owner = script.Parent.Parent.Parent.Parent.Parent:FindFirstChild("HumanoidRootPart")												
						owner.Anchored = false											
						wait(5)					
						Humanoid.Anchored = false
					else					
						if not Humanoid then						
							debounce = true
							local function remove(otherPart)
								    local humanoid = otherPart.Parent:FindFirstChild('Humanoid')			
								    local player = game.Players:FindFirstChild(otherPart.Parent.Name)
								    if humanoid and player then		
									        local inHand = otherPart.Parent:FindFirstChildWhichIsA('Tool')
									        local inBackpack = player.Backpack:FindFirstChildWhichIsA('Tool')
									        if inHand then
										       inHand.Enabled = false
										       inHand.Archivable = false
										       inHand.ManualActivationOnly = false
										       humanoid:UnequipTools()
										       wait(0.1)
										       local ownertool = script.Parent.Parent.Parent.Parent.Parent:FindFirstChild('Humanoid')
										       ownertool:Equip()
									        end
									        if inBackpack then
										   inBackpack.Enabled = false
										inBackpack.Archivable = false
										inBackpack.ManualActivationOnly = false
										humanoid:UnequipTools()
										local ownertool = script.Parent.Parent.Parent.Parent.Parent:FindFirstChild('Humanoid')
										ownertool:Equip()
										local tool = script.Parent.Parent.Parent.Parent
										tool:Deactivate()
							    end
							 end								
							end
							wait(5)
							Explosion.Touched:Connect(remove)	
						end						
					end		
				end)
			end
			Explosion:Destroy()
		end
	end)
	local BV = Instance.new("BodyVelocity",Slash)
	BV.MaxForce = Vector3.new(math.huge,math.huge,math.huge)
	BV.Velocity = plr.Character.HumanoidRootPart.CFrame.LookVector * 80
	wait(0.055)
	Slash:Destroy()
end)

Other script that will let me press F:

local UIS = game:GetService("UserInputService")
local plr = game.Players.LocalPlayer
local Debounce = true

UIS.InputBegan:Connect(function(Input)
	if Input.KeyCode == Enum.KeyCode.F and Debounce == true then
		Debounce = false
		script.RemoteEvent:FireServer(plr)
		script.RemoteEvent2:FireServer(plr)
		wait(5)
		Debounce = true

	end
end)