Yugabyte so slow?

I’m seeing (what I believe) is also a slow performance, this time on a cluster with RF=3; essentially writing large blobs of data – 50MB/s. Could someone comment whether that seems ‘normal’ according to their experience? Further details of my setup are in here: Lost leader, then the yb-tserver - while testing long-running (low throughput) writes - #2 by roman

I’m planning to replicate my tests against traditional Postgres soon, but would appreciate hearing other voices.