I tried both and stayed with Nextcloud because of some features (especially sharing and specifically private links). I have a ~5 years old server (Intel Skylak

I tried both and stayed with Nextcloud because of some features (especially sharing and specifically private links). I have a ~5 years old server (Intel Skylake, 8 GB RAM) on which I run a bunch od docker containers (about 30). One of them is Nextcloud and the load average is 0.8-1.0. This is for an average of 2 users (me and the rest of my family that in total uses the server as I do myself). Not a very scientific comparison, but I never had any performance issues.