How could wait() be more efficient?

Is their a way to make it so like say the player get 25 xp then 50 then 55 then the text clears. Instead of 25 then it waits and does not show 50 or 55.

local ExperiencePLAYER = script.Parent.Parent.Parent.Parent.Parent.ExperiencePLAYER

Old = ExperiencePLAYER.Value
ExperiencePLAYER.Changed:connect(function()
Difference = ExperiencePLAYER.Value - Old
if Difference > 0 then
script.Parent.Text = "+"..Difference
else
script.Parent.Text = Difference
end
coroutine.wrap(function()
wait(1)
script.Parent.Text = ""
end)()
Old = ExperiencePLAYER.Value
end)