Rolling with the punches: How mantis shrimp defend against high-speed strikes
news.ucsb.edu
news.ucsb.edu
I suspect they don't literally mean to compare acceleration rates?
Googling provides all sorts of additional likely misreporting: same speed, same power, same energy.
Paper: https://journals.biologists.com/jeb/article/227/9/jeb247063/...
Video: https://movie.biologists.com/video/10.1242/jeb.247063/video-...