The problem has been resolved. It turns out that the whole problem was with the music, which I turned off.
If the music is turned off in the game, some problem with the soundtracks starts and friezes appear.

Hello Stefanie. Using a special program (uninstall tool), I removed the mod and the game (because the usual reinstallation did not help at all), installed everything again. There are no friezes yet. If they appear again, I will do as I wrote. I don't have any other mods, only Nehrim. I have not chan...

In the city of Giliad, I entered a spider cave. As soon as I saw the first spider, the FPS dropped to 5 and now the game always freezing, even after restarting the computer.
Now the game always freeze, even after a complete reinstallation and reboot. Even after trying to start a new game.