The Witcher Remake keeps crashing randomly during complex combat scenes with my Corsair Vengeance RGB DDR5 6400, do I really need to mess with the timings?

There is nothing more frustrating than the game just vanishing right as you're about to land a massive spell. It's pure anxiety. The factory timings on the Corsair Vengeance RGB DDR5 6400 were causing response latency to swing between 15-22ns during heavy particle effects, leading to occasional sync failures in the memory controller. I tried disabling XMP in the BIOS first, but my FPS tanked from 120 to 85. While the crashes stopped, the performance hit was depressing. I went back in and manually loosened tRCD and tRP by 2 cycles, then nudged the voltage from 1.35V to 1.38V. AIDA64 showed latency stabilizing between 82-86ns—a slight increase, but the stability gain was massive. I did have the system hang twice during the loading screen while tweaking, but setting tRAS to 40 finally nailed it. Temps are holding at 55-61℃. After 12 hours of gameplay, the crashes are gone and the input lag is finally nonexistent.