How do I stop my Sapphire METAL Alloy Pulse RX 9070 XT from throttling in Forza Horizon 5?

While driving at high speeds, my frame rate dipped because the core temperature hit 85°C, triggering immediate downclocking. I tried increasing the case fan speed to help, but the noise was loud and the temperature didn't drop, leaving me feeling helpless. I realized the GPU's default fan curve wasn't aggressive enough for the sustained load. I used the GamePP Fan Curve Config panel to set the fan speed to 1800 RPM at an 80°C threshold. Stress tests confirmed the temperature dropped to 78-82°C per AIDA64. The frame generation time stabilized at 4.8-5.5ms, and the noise level was acceptable.