https://wccftech.com/amd-ryzen-7-4800u-laptop-battery-mode-performance-exponentially-increases-amd-apu-tuning-utility/

AMD APU powered notebooks are touted with praise for their great performance and offering exceptional battery life. However, the APU notebooks receive heavy criticism when it comes to unplugged performance. In fact, from Renior to Rembrandt (fourth to sixth-generation AMD lines), performance takes a huge hit, which the company has been very transparent about. However, AMD was quoted at the time stating that their Cezanne APU notebooks improved on this performance at launch.

With the AMD Ryzen 5 5600U laptops, the problem was raised again, and began to see the same repeated drops in performance as seen in previous versions.