IMHO that's still a "so what?". I see audio compression as having two primary purposes: realtime and archival, and speed is only vaguely relevant for the former.

In realtime applications, any processor within the last decade is far more than powerful enough to encode and decode in realtime. The first set of tracks in the results is 2862s long and even the slowest WAVPACK manages to encode it in >113x realtime and close to 250x realtime for decode.

For archival, high compression is important, but this codec doesn't compress better than WAVPACK either.