Unity 4.3 2D make character not so blurry when moved

Hi, I’m trying out the new 2D system in Unity, which is amazing. I just have a quick question, when I move my character with my move script

using UnityEngine;
using System.Collections;

public class CharacterBehaviour : MonoBehaviour {

	public bool jump = false;				// Condition for whether the player should jump.
	public float moveForce = 365f;			// Amount of force added to move the player left and right.
	public float maxSpeed = 500f;				// The fastest the player can travel in the x axis.
	public float jumpForce = 1000f;			// Amount of force added when the player jumps.
	public Transform target;

	// Use this for initialization
	void Start () {
	// Update is called once per frame
	void Update () {
		if (Input.GetKey(KeyCode.D)) {
			target.transform.Translate(Vector2.right * maxSpeed * Time.deltaTime, Space.World);

		if (Input.GetKey(KeyCode.A)) {
			target.transform.Translate(-Vector2.right * maxSpeed * Time.deltaTime, Space.World);

		if(Input.GetButtonDown("Jump"))	// && grounded
			jump = true;

	void FixedUpdate () {
			// Add a vertical force to the player.
			rigidbody2D.AddForce(new Vector2(0f, jumpForce));
			// Make sure the player can't jump again until the jump conditions from Update are satisfied.
			jump = false;

it becomes very “blurry”. Is there a way I can tweak this to make the moving “sharp”? It might be my computer, but it sometimes stutters as well. Thanks!

Try using transform .position instead of translate