How to fix core scheduling issues on the Ultra 9 285K?

During intense mid-lane brawls, I kept getting these tiny, jarring freezes that honestly shouldn't happen on a top-tier chip like the Ultra 9 285K. After digging into the logs, I realized the game process was bouncing between P-cores and E-cores like crazy, causing frame time spikes between 12-28ms. It was a total nightmare. I tried switching Windows to High Performance mode, but while the P-core clocks went up, the E-cores were still stealing resources, so the stuttering stayed. I eventually used a process manager to force the game onto P-cores 0-15 and disabled hyper-threading scheduling. Checking RTSS, my frame times finally tightened up from a chaotic 8-22ms to a rock steady 5-7ms. The input lag just vanished. I did hit a snag where background services lagged because I locked too many cores, but a quick tweak to the core mask fixed it. Temps sat around 62-68℃ with power draw at 125W. The scheduling curve is finally flat.
Category:Software Usage Last updated:January 30, 2026 10:08 PM