My Gainward RTX 5080 Storm OC keeps throttling and dropping clocks during intense fights, any fix?

Seeing my frames tank from 110 down to 55 in a split second is a complete nightmare when you're mid-hunt with a huge monster. Digging through the logs, I found this Gainward card hits a hard 320W ceiling, causing the core clock to plummet from 2600MHz to 1900MHz instantly. I tried dropping shadows to medium, which gained me about 12 frames, but the world looked flat and lifeless, making the compromise feel pointless. I used the management software to force the power limit from 100% up to 110% and set a steep fan curve to hit 80% speed at 68℃. In the monitoring tool, the clock fluctuation narrowed from 1900-2600MHz to a stable 2550-2650MHz, and frame times dropped from 25ms to 12ms. I did have a brief driver reset right after unlocking the power, but a small 0.01V voltage offset correction fixed it. Core temps settled at 72-77℃ and VRAM at 82-88℃. After three hours of torture testing, no more crashes, though the fan noise is now quite loud.