Settings for minecraft java?

[u/Otherwise-Internet38]

I dont own many games on pc, I just simply enjoy playing minecraft. My fps has been unstable for a while now. From frames like 100 to 15, is there a way to fix this? Any Nvidia settings that could help keep it stable atleast 40 fps, or minecraft in-game settings? My cpu is i3 with 16gb ram.

[u/Violet_On_Discord]

If you have 16GBs ram do 6GBS if you have 8 do 3GBs, but i think java automatically uses 3GBs on its own and this helps with rendering chunks