The Witcher Remake keeps having random hitches on my Maxsun B850ITX. Can PCIe settings fix it?

While exploring the Remake's world, I noticed some erratic frame time spikes—about a 0.2s hang every time a new area loaded. Because of the tiny ITX footprint, the Maxsun B850ITX WIFI ICE heatsinks hit thermal saturation during long sessions, causing microsecond delays in the PCIe link. I tried dropping the resolution to ease the load, but while average FPS went up, the random hitches stayed—proving it wasn't a raw performance issue. I eventually disabled PCIe Link State Power Management and cranked the chassis fans to 1800 RPM to force more airflow. In RivaTuner, the frame times tightened from a wild 14-35ms range down to a clean 11-15ms, and the stutters vanished. I did experience some slight texture pop-in after the power management tweak, which I solved by bumping the core voltage by 10mV. Board temps stabilized at 62-68°C. After recording three full combat encounters, the board temperature remained steady at 62-68°C.