How to move at the same velocity on X axis when falling at a higher speed

Unity Engine
1

I am making a game where the main mechanic is falling, however when I fall faster my character moves slower on the x axis, how do I remain the same amount of control for the x axis, but still allow infinite terminal velocity?

My movement code:

 void FixedUpdate () {
         float inputX = Input.GetAxis("Horizontal");
         float velocityX = player.GetComponent<Rigidbody2D>().velocity.x + (inputX / 10);
         float velocityY = player.GetComponent<Rigidbody2D>().velocity.y;
         if (!GameOver.paused)
         {
             player.GetComponent<Rigidbody2D>().velocity = new Vector2(velocityX, velocityY);
         }
     }
2

I don’t think your character should be moving slower in the x-axis when you are falling faster?

But to maintain the same amount of control on the x-axis when you fall faster you would obviously have to increase the x-axis velocity as well. Because you fall faster so you need to be able to avoid obstacles faster too.