Camera Tilt (Up/Dwn) and how to Make it smoother?

This is what I'm currently using but I'm curious if there are any other ways of stopping the camera from being tilted up and down. Why? Constantly CFraming the camera back down/up causes it to constantly shudder.

local x,y,z,m0,m1,m2,m10,m11,m12,m20,m21,m22 = 
workspace.CurrentCamera.CoordinateFrame:components()
CurrentAngle = math.atan2(m2, m22)
if default then target = game.Workspace.CurrentCamera.LocalParts.TeleCam else
target = game.Workspace[script.Parent.Variables.Camera.Location.Value].Camera end

--This bit >
if m2 == 0 then game.Workspace.CurrentCamera.CoordinateFrame = CFrame.new(target.Position)*CFrame.Angles(0,angle,0)*CFrame.new(0,0,30) end