How do I fix the annoying stuttering caused by thread scheduling on the MSI MPG Z890 EDGE TI WIFI?

There's nothing worse than that feeling of being suddenly yanked back while galloping through the Lands Between. My MSI MPG Z890 EDGE TI WIFI had P-Cores hitting 5.2-5.5 GHz, but the E-Cores were trying to handle critical physics, causing frame times to jump erratically from 16ms to 42ms. My first instinct was to just kill all E-Cores in BIOS, but my average FPS tanked from 60 to 45, which was a total fail. Instead, I went into BIOS $\rightarrow$ CPU Configuration and set the performance preference to P-Core Priority, then locked the minimum processor state to 100% in the Windows Power Plan. Checking RTSS, the frame times tightened up to a crisp 16.2-16.8ms. I had some weird app hangs right after the change, but a fresh chipset driver install cleared that up. CPU package power is hovering at 120-145W with temps at 68-74℃. The hitching is gone, but the RAM is running a bit warm at 58-63℃.