Question Rythmn Game Note Typing Issue

I'm making a DDR style rhythm game. I have a conductor class that keeps track of the song position, bpm. A track class that keeps track of the notes and spawn them when needed. And a note class that move the note towards the button that you need to press. The timing on this works pretty well. However, I want to note to move off screen, which I am having trouble with because I am using lerp to move the note to its destination. Is there a way to make the note move past its destination at the same speed as the lerp function? Also, the reason why I am using Vector3 is I'm going to parent the notes to the camera and move the camera for some cool effects.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class NoteController : MonoBehaviour
6. {
7.     //transform tf;
8.     // Start is called before the first frame update
9.     public Conductor conductor;
10.     public GameObject buttonObj;
11.  
12.     public Vector3 spawnPos;
13.     private Vector3 hitPos;
14.  
15.     public int beatsShownInAdvance;
16.     public float beatOfThisNote;
17.  
18.  
19.     void Start()
20.     {
21.         hitPos = buttonObj.transform.position;
22. }
23.  
24.     // Update is called once per frame
25.     void Update()
26.     {
27.         if (transform.position.y < hitPos.y)
28.         {
29.             transform.position = Vector3.Lerp(
30.                 spawnPos,
31.                 hitPos,
32.                 (beatsShownInAdvance - (beatOfThisNote - conductor.songPositionInBeats)) / beatsShownInAdvance
33.             );
34.         }
35.     }
36. }
37.  

 

I meant timing not typing.