Physics2D AddForce problems

[EZhurst]

I’m using AddForce to move my player, and when I run it in the editor, it works great. However, if I build and run it, the forces added seem to be less than when playing in the editor, meaning the player moves a lot slower. It is even worse when running in editor with the animator tab open(much slower than in a build). I have no idea why this is, and cannot seem to figure it out. The script I’m using is below. Thanks for any help!

using UnityEngine;
using System.Collections;

public class PlayerMove : MonoBehaviour
{
	public float moveSpeed = 1f;
	public float jumpHeight = 3f;
	public float thrusterPower = 1f;
	public Transform lineStart, lineEnd;
	public bool isGrounded;
	public bool thrusterEnabled;

	void Update ()
	{
		if(Input.GetKey(KeyCode.D))
		{
			rigidbody2D.AddForce(Vector2.right * moveSpeed);
		}

		if(Input.GetKey(KeyCode.A))
		{
			rigidbody2D.AddForce(-Vector2.right * moveSpeed);
		}

		if(Input.GetKey(KeyCode.Space))
		{
			rigidbody2D.AddForce (Vector2.up * thrusterPower);
			thrusterEnabled = true;
		}
		else
		{
			thrusterEnabled = false;
		}

		if(Physics2D.Linecast(lineStart.position, lineEnd.position, 1 << LayerMask.NameToLayer("Floor")))
		{
			isGrounded = true;
		}
		else
		{
			isGrounded = false;
		}

		if(isGrounded == true)
		{
			if(Input.GetKeyDown(KeyCode.W))
			{
				rigidbody2D.AddForce (Vector2.up * jumpHeight * 100);
			}
		}
	}
}

Also, I have a very powerful computer and checked the processes panel and i was only running at 12% memory and 30% CPU.

[Eric5h5]

Your code is framerate-dependent since you are using Update, which runs once every frame and has no fixed rate. Physics should only be done in FixedUpdate. (But note that GetKeyDown should not be used in FixedUpdate, since GetKeyDown is only true for the single frame when the key is pressed, which does not necessarily coincide with a FixedUpdate frame.)