Add very high framerate support for mediatek dimensity 8300 ultra

Hi iw14n02qbaei​, 

There are a few basic troubleshooting steps you could try that might help with device performance if you'd like. That said, because this is a Beta, performance and optimization may not behave exactly as expected while things are being fine-tuned.

Thanks again. I'll pass your feedback along to the team, and I really appreciate you taking the time to share your experience with us.

- EA_Lanna