Spam proofing code

[ancient linden]

function module:CheckStructure()
    local mouse = Player:GetMouse()
    local target = mouse.Target
    
    if not target then
        self:RemoveHighlight()
        return
    end
    
    if target ~= self.Plot.Objects then
        if target:FindFirstAncestor(self.Plot.Objects.Name) then
            target = target:FindFirstAncestorWhichIsA("Model")
            if target.Parent == self.Plot.Objects then
                self:AddHighlight(target)
            else
                self:RemoveHighlight()
            end
        else
            self:RemoveHighlight()
        end
    else
        self:RemoveHighlight()
    end
end

function module:RemoveHighlight()
    if not Outlined then return end
    local Highlight = Outlined:FindFirstChildOfClass("SelectionBox")
    if Highlight then
        Highlight:Destroy()
    end
    Outlined = nil
end

function module:AddHighlight(target:Model)
    if Outlined == target then return end
    
    Outlined = target
    local deleteOutline = deleteBox:Clone()
    deleteOutline.Parent = target
    deleteOutline.Adornee = target
end

THIS WORKS FINE, the only problem is that it is not spam proof at all, if i change target too quickly the selectionbox will remain on the target model, how can i fix this issue?