On computeraudiophile the rage seems to be using HQ Player to upsample to quad DSD. There's about a 100pg long thread about it there, which I don't have the patience to read. I can't recommend it because I haven't heard it(would like to), but it's hard to conclude that upsampling definitely can't help unless you have tried that approach and don't hear any benefit. That approach seems to have captured the hearts and attention of many who spend much time focusing on getting the most out of their bits. Cheers,
Spencer
Spencer