fixing choppy animation when using itween

Summery: I have a character with the character controller component and a custom 3rd person movement script and camera. The pirate ship that the character is on uses the itween MoveTo function to move the pirate ship on a set of waypoints from the Itween Path scripts.

Desired Functionality: To re-create the World of Warcraft flight path feature where the character can travel across the terrain using a ship.

The Architecture of the Game Object is as follows.

Pirate Ship - Empty Game Object - Contains Shipfly.cs |-Pirate Shop - Pirate Ship.fbx - Itween Path.cs (This handles the itween pathing and waypoints. This can be attached to any object in the game) |- Player Character -Prefab of with all necessary scripts for the character

Scripts:

Shipfly.cs

 using UnityEngine;
 using System.Collections;
 
 public class Shipfly : MonoBehaviour {
 
     // Use this for initialization
     void Start () {
         
         iTween.MoveTo(gameObject, iTween.Hash("path", iTweenPath.GetPath("Ship Fly 1"), "time", 30, "orienttopath", true));
     }
     
     
 }

I parented the character to help make sure collisions work. The pirate ship has a mesh collider. The problem is it the ship is lagging on the path or chops. I tried unparenting the character but then he just falls right through the ship. Move To disregards the Mesh Collider.

I appreciate any help, thanks!