You can figure out for yourself that when OpenJDK Platform binary suddenly takes up significantly more CPU than it did the day before, the problem is there and therefore I also get lower FPS. So there is something about that program that has not previously used as much CPU. And there is no specific situation in the game that cause lower FPS, it is everywhere, all the time. Right when I start the game.
You can figure out for yourself that when OpenJDK Platform binary suddenly takes up significantly more CPU than it did the day before, the problem is there and therefore I also get lower FPS. So there is something about that program that has not previously used as much CPU. And there is no specific situation in the game that cause lower FPS, it is everywhere, all the time. Right when I start the game.