How to fix Core Ultra 9 285K P-Core/E-Core lag in Unknown 9?
While sneaking and interacting with the environment, the game would just randomly hitch, which is honestly infuriating. The GamePP Frame Time Analyzer showed intervals jumping from 12ms to 42ms, even though CPU usage was only 60-70%. It was clearly a scheduling delay between the Ultra 9 285K's P-Cores and E-Cores. I first tried disabling all power-saving options in the BIOS, but the idle temp shot up to 58°C and the fans sounded like a jet engine—a total waste of time. I then used the GamePP Resource Scheduler Panel to set the game's main process to 'Realtime' and locked the compute threads to the P-Core group via the Process Priority Manager.
