Is Optifine cheating/hack?

[SergeantEagle]

just wondering how i can impove the fps on CV

[Lime]

nope quite a lot of ppl use opti here

[SergeantEagle]

ok here i go using optifine

[magicus]

A more modern approach is to use the Fabric loader, and install Lithium, Sodium and Phosphor instead. They achieve roughly the same end result, but are actively developed, and are open source.