1) The old interest is better, bigger, clearer and more intuitive, if I had opened the game for the first time I wouldn't have figured out how to play (but now I still couldn't pitch in because I didn't understand anything). The interface used to be brighter, miss the whole game is dark, it lost the coziness.
2) the developer writes that improved optimization, but in reality FPS became less, and the game starts more than a minute, as hangs for a few seconds from each click.
All this combined makes it so that even I, a person who likes the game - do not want to play it more. I hope that the developer at least return the old interface (as an example, you can make it alternative), because I can not play with such lags, hangs, not beautiful interface in the game, even if you want.
Although I play on the phone, I would not say that it is weak (the same Genshin Impact has a stable 30 + fps), I can still put up with expensive downloads (change the engine I do not know or really something to do with it already, a couple of years will pass and play will be impossible even on the PC), but I can not play without the former atmosphere of comfort, which gave the old interface.