Monitor Samsung LC2RG50FZIXCI

I ran into such a problem, I bought a new monique and in the game the picture started to swim stupidly, it’s still normal to go to the streets, but when I go into the house to get halfway, loot, walls, sofas, etc. start to swim. What is the problem? On YouTube I watched a video on setting up a monik - it didn’t help ... Please help, thank you in advance.