I'm gonna start with this because Ik people are going to say it, Vsync is off in game and in Nvidia control panel but doesn't help. I also want to say that ik 252 fps is more than enough, it just bothers me that its that lower out of no where when I was getting 1k before. I've reinstalled java, and have deleted everything in Minecraft and reinstalled, I've changed settings a lot, played with and without mods, with and without Optifine. This happens a lot for some reason to me, Minecraft uncaps and caps with no pattern to why, at least one that I've noticed. One day the FPS will be 1000, then I'll open it the next day and its 252. Now the thing that seems obvious to me is updates, whether on windows or java, if so any fix? Please help if anyone knows why my game sometimes does this, it's on all versions of MC to
EDIT: I guess I should also add, turning on vsync doesn't do anything, it just stays locked at 252 fps which what I think its suppose to do it turn it down to my monitors hz which is 144. So thats odd.