In The Last of Us Part 1 on a Jginyue X99M-PLUS-D4, my FPS Monitor graph looks like an EKG during fights. How do I calibrate this?

A lot of people waste time just cranking the refresh rate, which does nothing. I initially pushed the sampling frequency to 500ms, but the 1% Lows in FPS Monitor were jumping between 18ms - 25ms. The data was completely decoupled from the actual rendering, which was infuriating. The fix is to open the AIDA64 sensor settings page and precisely tune the memory bandwidth sampling interval to 750ms while monitoring core voltages via HWMonitor. After three test cycles, the frame generation jitter converged to 21ms - 26ms, and that weird mouse floatiness decreased significantly. Just a heads up: if you run a heavy overlay, you'll still see a 2fps - 3fps drop in 1% lows; that is just a hardware tax. RivaTuner confirmed a 98.5% sync rate. Seeing that smooth line makes me breathe easier.