可以改进IEqualityComparer的这种实现吗？

public class ImprovedEqualityComparer<T> : IEqualityComparer<T>
    where T : class
{
    private readonly Func<T, T, bool> _equalsFunc;
    private readonly Func<T, int> _hashCodeFunc;

    public ImprovedEqualityComparer(Func<T, T, bool> equalsFunc, Func<T, int> hashCodeFunc)
    {
        _equalsFunc = equalsFunc;
        _hashCodeFunc = hashCodeFunc;
    }

    public bool Equals(T x, T y)
    {
        return _equalsFunc(x, y);
    }

    public int GetHashCode(T obj)
    {
        return _hashCodeFunc(obj);
    }
}