My gate is not working even though it was before. Anyone know how to fix the script?

So, before my gate moved perfectly fast and smooth, but not it moves inch by inch very slow and very roughly. This is the code: Anybody know how to fix it?

local trigger = script.Parent
local gate = script.Parent.Parent.Gate

moving = false
open = false

function onClick()

    if open == false and moving == false then

        moving = true
        trigger.BrickColor = BrickColor.new("Bright yellow")

        for i = 1, (gate.Size.Y * 10 + 1) do
            wait()
            gate.CFrame = gate.CFrame*CFrame.new(0, 0.1, 0)
        end

        moving = false
        open = true
        trigger.BrickColor = BrickColor.new("Bright red")

    elseif open == true and moving == false then

        moving = true
        trigger.BrickColor = BrickColor.new("Bright yellow")

        for i = 1, (gate.Size.Y * 10 + 1) do
            wait()
            gate.CFrame = gate.CFrame*CFrame.new(0, -0.1, 0)
        end

        moving = false
        open = false
        trigger.BrickColor = BrickColor.new("Bright green")

    end

end

script.Parent.ClickDetector.MouseClick:connect(onClick)