Enemy AI character controller movement is super slow

I cant figure out why the character controller on my enemy AI is moving super slow. I put a debug statement in the chase function to see what was happening. The controller is moving at (0.0,0.0,-0.1), even though the movementDirection vector is < or > 0 for x,y & z. It changes based on my postion, so the character at least turns to face me. When I wrote this in js it worked fine. In c# its giving me all kinds of trouble. The code is a hodge podge of my code and some from a tutorial I was following. I have spent a few hours researching and trying different things. Thanks in advance for the help.

 using UnityEngine;
 using System.Collections;
 
 public class AISimple : MonoBehaviour {
     
 public float Distance;
 public Transform Target;
 public float lookAtDistance= 25.0f;
 public float chaseRange= 15.0f;
 public float moveSpeed= 5.0f;
 public float Damping= 6.0f;
 public float fov= 160.0f;
 
 private RaycastHit hit;
 
 
 public CharacterController controller;
 public float gravity = 20.0f;
 private Vector3 moveDirection = Vector3.zero;
 
 /*
  * Is player in line of sight?
  */
 bool LineOfSight ( Transform target  ){
      if (Vector3.Angle(target.position - transform.position, transform.forward) <= fov &&
             Physics.Linecast(transform.position, target.position, out hit) &&
             hit.collider.transform == target) {
         return true;
     }
     return false;
 }
 
     
 /*
   This ai will fly and move through objects inlcuding terrain!
 */
 void  Update (){
 
         if (LineOfSight(Target) == true && hit.transform == Target) // Target is player
         {
             
             //enemy sees you - perform some action
             
             // Gauge the distance to the player. Line in 3d space. Draws a line from source to Target.
             Distance = Vector3.Distance(Target.position, transform.position);
             
             // Turn yellow enemy is getting close. Will chase soon.
             if (Distance < lookAtDistance)
             {
                 
                 lookAt();
             }
             
             // Safe distance
             if (Distance > lookAtDistance)
             {
                 renderer.material.color = Color.green;
             }
             
             // Attack! Chase the player until/if player leaves attack range.
             if (Distance < chaseRange)
             {Debug.Log("enemy chase");
                 chase ();
             }
         } 
         else 
         {
             //enemy doesn't see you
         }        
     }
 
 
 
 // Turn to face the player.
 void  lookAt (){
     renderer.material.color = Color.yellow;
     // Rotate to look at player.
     Quaternion rotation= Quaternion.LookRotation(Target.position - transform.position);
     // Dampening will slow the turn speed of enemy.
     transform.rotation = Quaternion.Slerp(transform.rotation, rotation, Time.deltaTime * Damping);
 //    transform.LookAt(Target);
 }
 
 void  attack (){
     // in progress
     
 }
     
 void  chase (){
     renderer.material.color = Color.red;
     moveDirection = transform.forward;
     
     moveDirection *= moveSpeed;
     
     moveDirection.y -= gravity * Time.deltaTime;
     controller.Move(moveDirection * Time.deltaTime);
     Debug.Log(moveDirection * Time.deltaTime);
         
 }
 }