1

I set values very high just to see if it would speed up the door, but it is the same it seems.

var moveSpeed:float = 99999999;
var offsetPosition:Vector3 = Vector3.zero;
private var startPos:Vector3 = Vector3.zero;



function Start()

{

    startPos = transform.localPosition;

}

function Update (){

if(open == true){
transform.localPosition = Vector3.Lerp(transform.localPosition, transform.localPosition + offsetPosition, moveSpeed*99999999999999999 * Time.deltaTime);
}

if(open == false){
transform.localPosition = Vector3.Lerp(transform.localPosition, startPos, moveSpeed * Time.deltaTime);
}

if(enter == true){
if(Input.GetButtonDown("Reload")){
open = !open;
}
}
}


function OnTriggerEnter (other : Collider){

if (other.gameObject.tag == "Player") {
(enter) = true;
}
}


function OnTriggerExit (other : Collider){

if (other.gameObject.tag == "Player") {
(enter) = false;
}
}
2

The last parameter of a Vector3.Lerp is the percentage of which it will move from the first point to the second. It must be between 0 and 1 (and is clamped between 0 and 1).

Some examples:
0 - don’t move at all.
0.5 - move halfway this frame.
1 - move all the way this frame.

3

Output Time.deltaTime and you will see that it is very small

Try using Time.time

Also, next time check out the docs before posting. Unity - Scripting API: Vector3.Lerp

There are many examples to help you along.