Unity Character Controller jumps instantly

So I have this mess of a script, which has some mechanics like double jump, camera space controls, which all work fine, but for jumping, it instantly "teleports" upwards and falls back down, and I'm not sure why. I am using CharacterController. using System.Collections; using System.Collections.Generic; using UnityEngine;

 public class MovementController : MonoBehaviour
 {
     private float verticalVelocity;
     private CharacterController cc;
     public float gravity = 1f;
     public float moveSpeed;
     private Vector3 move = Vector3.zero;
 
     private Transform cam; 
     private Vector3 camForward; 
     private bool jump;
     public float jumpForce = 2f;
 
     private int jumpCounter;
     public int allowedConcurrrentJumps = 2;
 
     // Use this for initialization
     void Start()
     {
         cc = GetComponent<CharacterController>();
         cam = Camera.main.transform;
     }
 
     // Update is called once per frame
     void Update()
     {
         float h = Input.GetAxis("Horizontal");
         float v = Input.GetAxis("Vertical");
         float y = -gravity;
 
 
         camForward = Vector3.Scale(cam.forward, new Vector3(1, 0, 1)).normalized;
         move = (v * camForward + h * cam.right).normalized;
 
         if (cc.isGrounded && Input.GetButtonDown("Jump"))
         {
             Debug.Log("Grounded");
             move.y = jumpForce * 10f;
             jumpCounter = 0;
         } else if (Input.GetButtonDown("Jump") && jumpCounter < allowedConcurrrentJumps){
             move.y = jumpForce;
             jumpCounter++;
         } else {
             move.y = y * Time.deltaTime;
         }
     }
 
     void FixedUpdate()
     {
         cc.Move(move * moveSpeed * Time.deltaTime);
     }
 }