Fast line rendering in 2D/3D

Hi all,

I'm currently trying to find the best way to render line on mobile device. These lines grows up and are very basic. They share a same point : 0,0 and then grow in any direction from 0 to x (in distance).

On my laptop, such a code is doing fine :

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 using Vectrosity;
 
 public class Lines : MonoBehaviour {
     private Vectrosity.VectorLine myLine;
     private List<VectorLine> path;
     private List<Vector3> targetList;
     
     public Material lineMaterial;
     [Range(0.1f, 10.0f)]
     public float stroke;
     
     [Range(1, 1000)]
     public int lineNumbers;
     
     float distance = 0;
     
     
     // Use this for initialization
     void Start () {
         path = new List<VectorLine>();
         targetList = new List<Vector3>();
         float max = 10.0f;
         float min = -10.0f;
         
         for (int i = 0; i < lineNumbers; i++){
             var linePoints = new Vector3[2];
             linePoints[0].x = 0;
             linePoints[0].y = 0;
             linePoints[0].z = 0;
             
             targetList.Add (new Vector3(Random.Range(min,max), Random.Range(min,max),Random.Range(min,max)));
             path.Add(new VectorLine("foo"+i.ToString(), linePoints, lineMaterial, stroke));
         }
     }
     
     // Update is called once per frame
     void Update () {
         for (int i = 0; i < lineNumbers; i++){
             Vector3 vEnd = path[i].points3[1] + (targetList[i].normalized * distance);
             path[i].points3[1] = vEnd;
             path[i].Draw3D();
             
         }
         distance+=0.01f;
     }
 }

Unfortunately, compiling the same code for iOS iphone, give really bad performance. I stick around : - 10fps for 1000 lines - 20fps for 500 lines - 30fps for 300 lines

30 fps is fine but I just wondering how one would handle to draw 2000 or more lines at the same time ?

thanks a lot !