Why does my movement speed drop when my camera points down?

Question

My movement speed drops when I look down. I tried using the provided movement code template, but it didn't resolve the issue. Here's the code:

// Fill out your copyright notice in the Description page of Project Settings.


#include "CPPMainPlayer.h"

ACPPMainPlayer::ACPPMainPlayer() : Super()
{
    SpringArm = CreateDefaultSubobject<USpringArmComponent>(TEXT("SpringArmComponent"));
    SpringArm->SetupAttachment(RootComponent);
    SpringArm->TargetArmLength = 300.0f;
    SpringArm->bUsePawnControlRotation = true;

    Camera = CreateDefaultSubobject<UCameraComponent>(TEXT("MainCamerea"));
    Camera->SetupAttachment(SpringArm);
    Camera->bUsePawnControlRotation = false;
    
    bUseControllerRotationPitch = false;
    bUseControllerRotationYaw = false;
    bUseControllerRotationRoll = false;


}

void ACPPMainPlayer::SetupPlayerInputComponent(UInputComponent *MyPlayerInput)
{
    Super::SetupPlayerInputComponent(MyPlayerInput);

    MyPlayerInput->BindAxis("MoveForwardBackward", this, &ACPPMainPlayer;::MoveForwardBackward);
    MyPlayerInput->BindAxis("MoveRightLeft", this, &ACPPMainPlayer;::MoveRightLeft);

    MyPlayerInput->BindAxis("Turn", this, &ACPPMainPlayer;::AddControllerYawInput);
    MyPlayerInput->BindAxis("Look", this, &ACPPMainPlayer;::AddControllerPitchInput);

    MyPlayerInput->BindAction("Jump", IE_Pressed, this, &ACPPMainPlayer;::Jump);
    MyPlayerInput->BindAction("Jump", IE_Released, this, &ACPPMainPlayer;::StopJump);
   
}

void ACPPMainPlayer::MoveForwardBackward(float Value)
{
    FVector Direction = FRotationMatrix(Controller->GetControlRotation()).GetScaledAxis(EAxis::X);
    AddMovementInput(Direction, Value);
}
a
void ACPPMainPlayer::MoveRightLeft(float Value)
{
    FVector Direction = FRotationMatrix(Controller->GetControlRotation()).GetScaledAxis(EAxis::Y);
    AddMovementInput(Direction, Value);
}

void ACPPMainPlayer::Jump()
{
    bPressedJump = true;


}

void ACPPMainPlayer::StopJump()
{
    bPressedJump = false;
}