I'm not familiar with how the LHR unlock works, but I am curious about how the lhr-unlock and the tweak settings work together.. Also, I assume that the intensity at -2 on the 3080's means something different than it does on the non-LHR cards, and the kernel selection for the 3080s being low values is also an LHR thing??
In the LHR more tweak will increase the load sent to the gpu since xintensity is not supported. It has a different meaning than in standard mode. In standard mode tweak will split jobs in order try to remove stale shares. This is not needed on the 2miners pool.