Menu shakes while opens

Im trying to make animation like the Menu apears from the hole, but i cant solve these two bugs: the frame renders only when i update ImageButton, and this shaking animation.

local ReplicatedStorage = game:GetService("ReplicatedStorage")

local TweenService = game:GetService("TweenService")
local Style1 = TweenInfo.new(5,Enum.EasingStyle.Linear) 

local Button = script.Parent
local UpgradesMenu  = Button.Parent.Parent.UpgradeMenu
local GUI = Button.Parent
local Menu = UpgradesMenu.UpgradesMenu.Menu

local Diagonal = math.sqrt(math.pow(UpgradesMenu.AbsoluteSize.X,2)+math.pow(UpgradesMenu.AbsoluteSize.Y,2))

UpgradesMenu.Enabled = false

Button.MouseButton1Click:Connect(function()
	
	UpgradesMenu.UpgradesMenu.UICorner.CornerRadius = UDim.new(1,0)
	UpgradesMenu.UpgradesMenu.Position = Button.Position
	UpgradesMenu.UpgradesMenu.Size = UDim2.new(0,0,0,0)

	Menu.AnchorPoint  = Vector2.new(Button.Position.X.Scale,Button.Position.Y.Scale)
	Menu.Position = UDim2.new(0.5,0,0.5,0)
	Menu.Size = UDim2.new(0,UpgradesMenu.AbsoluteSize.X,0,UpgradesMenu.AbsoluteSize.Y)
	
	UpgradesMenu.Enabled = true
	
	TweenService:Create(UpgradesMenu.UpgradesMenu,Style1,{
		Size = UDim2.new(0,Diagonal*2,0,Diagonal*2)
	}):Play()
	
end)

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