new input system under heavy load sample script

SimpleController_UsingActionAsset.cs

// example script from Unity about this issue https://issuetracker.unity3d.com/issues/the-new-input-system-is-not-detecting-clicks-when-under-heavy-load

using UnityEngine;

// Use action set asset instead of lose InputActions directly on component.
public class SimpleController_UsingActionAsset : MonoBehaviour
{
    private SimpleControls m_Controls;
    Vector3 m_MovementSum = Vector3.zero;
    public float speed = 10f;
    
    public void Awake()
    {
        m_Controls = new SimpleControls();
        m_Controls.gameplay.move.performed += (callbackContext) => Sum(callbackContext.ReadValue<Vector2>());
    }
    public void Update()
    {
        var move = m_Controls.gameplay.move.ReadValue<Vector2>();
        if (move != Vector2.zero )
        {
            // Calculate sum for the callback's and apply that here.
            Move(move);
            m_MovementSum = Vector3.zero;
        }
        else if (m_MovementSum != Vector3.zero && m_Controls.gameplay.move.WasPressedThisFrame())
        {
            Move(m_MovementSum);
            m_MovementSum = Vector3.zero;
        }
    }
    private void Move(Vector3 move)
    {
        transform.Translate(move * speed * Time.deltaTime);
    }
    private void Sum(Vector2 direction)
    {
        m_MovementSum += new Vector3(direction.x, direction.y, 0);
    }
}