For the past week or so I've been dealing with intense lag on Minecraft alone and have tried almost everything to fix it. (Lowering render distance, allocating RAM, reinstalling Minecraft, deleting .minecraft folder, playing with and without optifine and reinstalling Java.) I am still only getting around 30-40 FPS. If anyone has any advice please share.
I tried to go through the NVIDIA control panel but it doesn't have the same options that the website says it should, mine is missing most of them. I am on a desktop, more specifically the Alienware Aurora R9. I did not try the second thing you said in the parenthesis because I have no idea what it means.