Optifine is one of the oldest modes in Minecraft. It was like the mode that everyone would go to when people started asking about performance enchantment and all that. Optifine is definitely one of the oldest things on the list. Optifine zoom and a bunch of other different modifications. Optifine has a lot more than you can deal with including specific graphics settings which are really nice and other settings that are very expensive. Optifine is helping to aid performance especially on lower-end pc.
