How do I get rid of lag in Minecraft?

How do I get rid of lag in Minecraft?
Players should change the following video settings if they’re experiencing lag:

Graphics: Fast.
Render Distance: 10 Chunks.
Smooth Lighting: Off.
Max Framerate: 30 to 60 FPS (depending on how poor the lag is)
3D Anaglyph: Off.
View Bobbing: Off.
GUI Scale: Normal.
Brightness: Bright.

Players should change the following video settings if they’re experiencing lag:
  1. Graphics: Fast.
  2. Render Distance: 10 Chunks.
  3. Smooth Lighting: Off.
  4. Max Framerate: 30 to 60 FPS (depending on how poor the lag is)
  5. 3D Anaglyph: Off.
  6. View Bobbing: Off.
  7. GUI Scale: Normal.
  8. Brightness: Bright.
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