Smartphone SoC overclocking is becoming of thing now thanks to technologies like Oppo's Hyper Boost or Huawei's GPU Turbo. Oppo even collaborated with game publishers and game engine developers to provide compatibility for the most popular mobile games and applications. The Hyper Boost technology can also speed up OS tasks.
https://www.notebookcheck.net/Oppo-announces-Hyper-Boost-optimization-for-mobile-games-and-apps.338056.0.html