Making a bar smooth

[Mock]

Hey there,

Working on an addon here, the point of it is to show when i will get the optimal amount out of cooldowns. But for the sake of the visual, I would love to know a way make it update smoothly. Could anyone give me a hand?

Basically i got this:

function NailOMeterBar:RunThrough()
	self:SetMinMaxValues(low, high)
	self:SetValue(np)
end

Looked trough the oUF smooth plugin but didn't really get much out of it

Any help would be greatly appreciated.