The game is not full screen and the menu lags a lot (Elden Ring)

Hello everyone, the game does not want to expand to full screen. That is, a small window in the upper left corner, I dug in the game settings, it doesn’t help, what should I do? this one and now it's such garbage. Then I put the game with the old patch, the same song, plus everything else and the menu lags wildly. Help!