How to reduce minecraft lag? - 1

Well here's a suggestion: try putting minecraft as your computers main priority or try reducing your settings or try and update your drivers. Hope I helped.

Set your settings to render distance 4 chunks graphics fast fulscreen on clouds off and smooth lighting max

If your computer is so old or slow it won't run minecraft well, optifine is not likely to help. You didn't tell us what kind of computer you have, but it's likely it isn't fast enough, or doesn't have a good enough video card, to play minecraft.