Fractal Transformer a lot of queries

I'm using the package spatie/laravel-fractal

I don't know if this is a problem or just the way fractal works, but when i include a fractal transformer in another i get a new query for each result of the first transformer. In other words, if i list Users and include the Roles, for each user i will have a query to get the roles.

UserController (Only the method here)

public function index(Request $request)
{
        $users = User::all();
        $data = Fractal::create()
        ->collection($users)
        ->transformWith(new UserTransformer())
        ->parseIncludes(['roles'])
        ->toArray();

        return $this->respond([
            'items' => $data
        ]);
}

UserTransformer

class UserTransformer extends TransformerAbstract
{
    protected $availableIncludes = [
        'roles', 'notifications', 'permissions'
    ];

    public function transform(User $user)
    {
        return [
            'id'     => (int) $user->id,
            'name'   => $user->name,
            'email'  => $user->email,
            'active' => (bool) $user->is_active,
        ];
    }

    public function includeRoles(User $user)
    {
        return $this->collection($user->roles, new RoleTransformer());
    }
}

RoleTransformer

class RoleTransformer extends TransformerAbstract
{
    protected $availableIncludes = [
        'permissions'
    ];

    public function transform(Role $role)
    {
        return [
            'id'           => (int) $role->id,
            'name'         => $role->name,
            'display_name' => $role->display_name,
        ];
    }
}

The queries

I'm getting a query to get the role for each user i'm listing Off course i will have a pagination an will not get all users, but this is insane, is 149 queries, that can be done with only one query using join.

select * from `users`

select `roles`.*, `role_user`.`user_id` as `pivot_user_id`, `role_user`.`role_id` as `pivot_role_id` from `roles` inner join `role_user` on `roles`.`id` = `role_user`.`role_id` where `role_user`.`user_id` = '1'

select `roles`.*, `role_user`.`user_id` as `pivot_user_id`, `role_user`.`role_id` as `pivot_role_id` from `roles` inner join `role_user` on `roles`.`id` = `role_user`.`role_id` where `role_user`.`user_id` = '3'

select `roles`.*, `role_user`.`user_id` as `pivot_user_id`, `role_user`.`role_id` as `pivot_role_id` from `roles` inner join `role_user` on `roles`.`id` = `role_user`.`role_id` where `role_user`.`user_id` = '4'

select `roles`.*, `role_user`.`user_id` as `pivot_user_id`, `role_user`.`role_id` as `pivot_role_id` from `roles` inner join `role_user` on `roles`.`id` = `role_user`.`role_id` where `role_user`.`user_id` = '5'

select `roles`.*, `role_user`.`user_id` as `pivot_user_id`, `role_user`.`role_id` as `pivot_role_id` from `roles` inner join `role_user` on `roles`.`id` = `role_user`.`role_id` where `role_user`.`user_id` = '6'