I agree with Rickirs,unless you specifically implement the LHR mode like many of the other miners are doing you are going to lose clients from the Nvidia side,personally I am happy from quite a lot of time with your miner as I mainly have AMD cards but it is a shame that you have not implemented some kind of LHR tune yet,hopefully this will be fixed in the upcoming releases.
I don't have any LHR cards, but my 3070 non-LHR does not perform well with PM either. The miner needs improvements for all Nvidia cards too.
Also, I have on the way RX 6600 non-XT. Is that card will be supported in the beta release the same way as the XT models?