My Gainward RTX 2060 Storm hits a power wall and drops clocks during combat in Like a Dragon: Ishin. Should I adjust the power limit?

It's honestly ridiculous; a well-optimized old game made my 2060 feel like a 1050. I'd get 60 FPS walking the streets, but it would tank to 30 the moment a fight started. The power wall on the Gainward RTX 2060 Storm is set way too tight—the core clock would hit 1600MHz and then plummet to 1100MHz instantly. I tried lowering all the graphics settings, but the game looked like a mosaic and the frames still dropped; it was a pointless exercise. I used a tuning tool to push the power limit from 120W up to 140W and locked the fans at 80%. In stress tests, the core clock stabilized at 1750-1820MHz, and the stuttering vanished. When I first maxed the power, the card hit 85°C and almost triggered thermal protection, so I had to fix my case airflow to bring it back to 74-78°C. VRAM usage is around 5.1-5.8 GB with power steady at 135W. Saved these settings as a preset in the config file. Backup successful, but this card is definitely showing its age.