I'm getting random micro-stutters while building houses in The Sims 5 on my Maxsun B850M WIFI with EXPO enabled. How do I fix this?

It was driving me insane. In such a beautiful sim, placing a single piece of furniture would trigger a 0.1s micro-stutter—it felt like the game was constantly tugging at my mouse. The default EXPO profile at 6000MHz on my Maxsun MS-eSport B850M WIFI ICE had the SoC voltage hovering around 1.2V, causing a tiny clock offset during FCLK synchronization. I tried dropping the RAM to 5200MHz, but my minimums tanked from 60 FPS to 45 FPS, which was just unacceptable. Instead, I went into the BIOS and locked the SoC voltage at 1.25V and bumped the tRFC from 480 to 520. AIDA64 memory tests showed a stable latency of 65-69ns, and the stutters completely vanished. I tried 1.3V once, but the RAM temp spiked to 62℃, so I backed it off to 1.25V. Now RAM stays at 48-54℃, CPU at 68-74℃, and I've saved the whole config to a BIOS profile so I don't have to do this again.