How do I fix the zooming out larger gui on BillboardGUI?

When I zoom out on my BillboardGui It gets HUGE and gets taller as crap..

Please help!

local Bill = Instance.new('BillboardGui',Tab)
Bill.StudsOffset = Vector3.new(0,0,0)
Bill.Size=UDim2.new(0,200,0,50)
Bill.Adornee=Tab
local Text=Instance.new('TextLabel',Bill)
Text.Text = txt
Text.Position=UDim2.new(0,0,0,0)
Text.Font = Enum.Font.SourceSansBold
Text.FontSize = "Size24"
Text.TextStrokeTransparency=0
Text.TextColor3 = Color3.new(255, 0, 255)
Text.TextStrokeColor3=Color3.new(170, 0, 127)
Text.Size=UDim2.new(0,200,0,25)
Text.BackgroundTransparency=1
Text.Position=UDim2.new(0,0,0,0)

~Enchanted