Ideas how to improve disk performance?

[Alexey]

This is unlikely related to a slow hardware, because storagenode can be run even on the router:

Running node on OpenWRT router?

Hi, I’m new here. I first tried storagenode on Windows 10. It was great but keeping my computer online all the time started to give me anxious and it was not optimal for a home compute. So I’ve decided to stop it for that time. Month later, I got the idea to give it a try on my router. I bought an external 2.5inch 5TB hard drive for that and my router is an WRT3200ACM where I suppose it’s far good enough for the job. My router is always on all the time unlike my computer. After that, I realized …

The usage depends on the customers, not your hardware, unless you use network filesystems (NFS, SMB/CIFS, SSHFS, etc.) or SMR drives.