too much RAM being consumed making the game so laggy

The game starts working properly but its RAM consume increase until is too much, literally consuming 12-13 Gb of ram (i have 16) and starts to being so laggy, and it wasnt happening previously. I tried reinstalling the game and it looks stopping at 6gb but after some time it continue increasing its consume again, no matter the world or anythihg. I saw other post about this issue here but it didn't get solved.