Why is there a slight input lag in The Sims 5 on a Biostar B550MH?

In a sim game, even a 15ms delay can ruin the experience. I noticed a tiny but irritating disconnect between my clicks and the screen feedback when panning the camera quickly. The Biostar B550MH is a solid board, but since I was mixing RAM brands, the sync instructions were hitting 82-98ns of latency. I tried disabling every unnecessary Windows service, but the response time only improved by about 1%, which was basically useless. I ended up rearranging the sticks to ensure identical capacity and speed pairs were in the same channel and locked the timings to 16-18-18-36. LatencyMon showed DPC latency dropping from 1.8-3.5ms to a sharp 0.9-1.3ms, and the game suddenly felt responsive. I did hit a brief freeze when first loading into the game after tightening the timings, but bumping the memory voltage from 1.2V to 1.35V stabilized everything. CPU temps stayed around 62-68℃. After an hour of building, the input lag is gone, though the RAM is definitely running a bit hotter now.
Category:Hardware Peripherals Last updated:April 29, 2026 11:52 AM