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)