My Gainward RTX 5070 Ti throttles in dense forests in Horizon Forbidden West, can priority settings help?

This card is an absolute space heater. In heavy foliage areas, the power draw would spike to 300W and the clock speeds would jump around like a heart monitor—it was ridiculous. My FPS would swing between 90 and 50, making the game feel like a slideshow. I tried dropping the settings to Medium, but then the game looked like a pixelated mess, and I felt like a total noob for nerfing my hardware. Instead, I used MSI Afterburner to lock the core voltage at 0.95V for the 2400MHz point and set the fan curve to blast at 90% once it hit 75℃. HWInfo showed the core finally stabilized between 2.4-2.6GHz without those cliff-dive drops. I did hit two driver crashes right after locking the voltage, but dropping the frequency by 30MHz sorted it out. Now the core sits at 72-81℃ while the fans scream at 2100 RPM. I exported the whole voltage-frequency map to a log for backup, and the fans are now consistently hitting 2100-2200 RPM.