dsd files reproducing with hiccups

Hi,
i’m trying to reproduce DSD files with Volumio in raspberry pi zero. The audio is full of hiccups and i don’t know if is a problem of configuring Volumio or is an hardware problem. It’s look like the CPU is having hard time to reproduce that file (is almost 1 GB in 4 minute song). Is there any minimum hardware specification to reproducing those files with MPD?
Thanks