Problems with Vehicle Regen Spawner?

I have a Dialog ran Vehicle Spawner that should spawn in the car when you click on it's choice, but when you click it, it gives the entire server 4-6 seconds of massive lag before the car spawns in the workspace. I can't figure out at all what any of the problems are.

obj = {}

script.Parent.DialogChoiceSelected:connect(function(player, choice)
    for _,i in pairs (game.ServerStorage:GetChildren()) do
        if i.Name == choice.Name then
            table.insert(obj, i)
            local c = i:Clone()
            c.Parent = workspace
            c:MakeJoints()
        end
    end
end)