Any chance you could look at this specific spot, and why there's such a big difference in GPU load?

200 Watts:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3512096509

300 Watts:
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3512096727


Have to look down to save some power, it's the only location I have encountered this behaviour on...