Efficient Way to Draw Wireframes (OpenGL ES 2.0, iOS)

I'd like to draw wireframe meshes as efficiently as possible on the device.

I stumbled on the GL package and decided to attempt to bypass the mesh renderer (see below).

However, I have not noticed any performance jump. Does anyone have recommendations? GL.Lines is usually very fast in raw OpenGL. Can I use VBOs or something similar?

   function OnRenderObject() 
   GL.Color(Color.white); 
   GL.Begin(GL.LINES); 
 
   for (var i:int = 0; i < points.length / 3; i++) { 
   GL.Vertex(points[i * 3]); 
   GL.Vertex(points[i * 3 + 1]); 

   GL.Vertex(points[i * 3 + 1]); 
   GL.Vertex(points[i * 3 + 2]); 

   GL.Vertex(points[i * 3 + 2]); 
   GL.Vertex(points[i * 3]); 
   } 

thanks in advance.