Yuzu is an experimental Nintendo Switch emulator from the creators of the Citra 3DS emulator. The emulator has come a long way since the early days with more games becoming supported and general performance improvements. The first major update of 2021 brings a rewrite of the buffer cache along with general bug fixes and stability improvements. The new buffer cache was tested with the Ryzen 5 3400G and resulted in an average performance improvement of 89% for tested games with the average FPS rising to 30. These improvements should greatly benefit those with lower-end hardware and are likely to increase in the future as the emulator is further developed.