Instructions
Open the "Minecraft" file to start the "Minecraft" game on your computer, then click "Login" at the bottom, right of the window to log into your account.
Click the "Options" button in the main menu, then select "Graphics: FAST," "Limit framerate: ON," "View bobbing: OFF" and "Render distance: TINY."
Click the "Done" button and then click "Back to Game" to resume play. You should immediately notice that the game lag has been reduced significantly and your character's movement is less jerky.