Xbox series S problem with fps 20/40

it's impossible to enjoy the game if fps goes from 20 with a max of 50 obviously 50 fps works when there are no monsters and you are still starting to play especially in the final stage of the game is becomes more horrible than before, with terrible performances, I tried to change the graphics settings several times, even the suggested ones, but the game always remains the same, I understand that the game is in early access, but I didn't expect a very nice but unplayable game , I could understand various gameplay issues but the presentations impact the game too much. only once it ran at 77/80 fps and that was already a spectacle, this happens after patch 0.0.1, but the next day I find myself again with those 40 fps when idle and 26 when playing , I had believed in an improvement but unfortunately it was not like that and not I don't even understand how it was possible. I hope that in these days you improve at least the performances for consoles from pc in the future because I see many people playing well, but we at console are going through a bad time, especially XBOX SERIES S