The results there are using Ember 3.11, not Octane, so I'd also say those results are out of date :-p I will try to get the benchmarked Ember codebase updated over the winter holidays. I've always love looking at these microbenchmarks.

At large app scale Ember apps perform very well, and I would happily pit the performance of a full-complexity Ember app against any other framework. At the end of the day the goal of the Ember project is not to be the fastest, especially at microbenchmarks, but to have competitive performance with an API that any level of developer can be successful with. To have a fast Ember app there aren't any special tricks or APIs to learn, it is simply fast out of the box with performance that scales.

Thanks for the reminder about this benchmarking project!