https://www.androidcentral.com/gaming/virtual-reality/gdc-2022-provided-a-glimpse-into-the-future-of-ps-vr2-games
GPU frame time improvements are up to 2.5x faster with foveated rendering and up to 3.6X faster with both rendering and eye tracking
Running the popular VR Alchemy Lab demo with demanding graphics like dynamic lighting and shadows, rendering and tracking dropped frame time from 33.2ms to 14.3ms, a 2.3X improvement.
And running a 4K spaceship demo, CPU thread performance and GPU frame time were 32% and 14% faster, respectively.