I've been using Minecraft Java Edition for a few weeks, and it run perfectly on highest settings on about 150-300fps. One day it suddenly started using about 80-90% of my CPU (i5-7400) and about 20% of my GPU (GTX 1050) which of course caused huge fps loss (it's unplayable). I tried changing setting in Nvidia control Panel, task manager, I feel like I've tried everything, but it still doesn't work properly. If you have an idea what could cause such a problem (because again- it used to work very well), please let me know.

Thank you

Adam