Comment by Midar

This is running on a server with super slow single core performance and slow I/O (Sun Fire T1000 with full disk encryption, giving ~ 2 MB/s for the disk), and yet it feels fast and I've never encountered any performance issues. As long as your repo is not as gigantic as https://pkgsrc.fossil.netbsd.org, you'll be fine, no matter what slow hardware you throw at it.