CPU thread priority in JUCE

[d.healey]

I noticed that since I switched to an Alder lake cpu with its P and E cores that HISE seems a bit slower to open and compile scripts, and scriptnode is super laggy, for anything other than a simple patch it's unusable for me.

I thought it might be something OS specific and investigated a few options, but now I'm wondering if it's related to this thread priority issue reported on the JUCE forum:
https://forum.juce.com/t/fr-thread-priority-vs-efficiency-performance-cores/49025

This seems to be an issue that especially affects M1/M2 users. A fix has been proposed for AU plugins but nothing yet for VST3 or (crucially for HISE) standalone apps.