Solved
suggestedCpuPerfLevel and suggestedGpuPerfLevel appear to do nothing
Setting OVRManager.suggestedCpuPerfLevel and OVRManager.suggestedGpuPerfLevel to OVRManager.ProcessorPerformanceLevel.Boost has no effect on CPU and GPU levels when observed through the OVRMetrics to...
They are "suggested" levels because the power management system can override them to conserve battery or manage overheating.
"Gets or sets the current suggested CPU performance level, which can be overriden by the Power Management system."
Is your app maxing out the CPU or GPU utilization? If not, the system may just be deeming the higher levels unnecessary.
Looks like the UK release notes are behind. Check the US version:
https://store.facebook.com/help/quest/articles/whats-new/release-notes/
