This has been my experience too. I wrote a text crdt last year which improved automerge’s (then) 5 minute runtime. My code currently takes 6ms to do the same wo

This has been my experience too. I wrote a text crdt last year which improved automerge’s (then) 5 minute runtime. My code currently takes 6ms to do the same work. Automerge’s design assumed this stuff would always be slow, so they had this whole frontend / backend code split so they could put the expensive operations on worker threads. Good optimizations in the right places make all that complexity unnecessary. The new automerge is shaping up to be simpler as well as faster.