From my experience I got 20 or lower fps(frames per second)when I heard about optifine it got me thinking, unfourtunately i always clicked the wrong download button XD . However my bro figured it out (on windows only
)Here's the instructions.
1:Go to internet 2: go to Optifine.net 3: choose which one to install (ultra is better)
3: click the one you chose 4: DONT click download its wrong instead above it there's a long name CLICK THAT 5: After it downloads you may close the page 6: Search Optifine in the windows start menu 7:click that and install it 8:Uhh I'll post that in a later post its hard from here
I think that's right for the most part lol XD I have to see what I did