Tired of only having 0-30 Fps? Well I can help you!

1. Put your view distance on normal/short(Only tiny if its a serious issue)

2. Graphics on fast.

3. Performance on max fps

4. Download OptiFine to reduce animations(That produce lag)
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5. Go to task manager, go to Cpu, find "javaw.exe" Right click it and click "Set priority", click "High"

6. Stay in closed environments more often.

7. Don't change do many chunks at once(Tnt * 1000000)

8. Don't download to many mods such as: Mo' creatures, More creeps and weirdo's, ect(This could affect lag greatly by the spawn rates)

9. If its a bad issue try a simple texture pack..

Now your done! This should reduce lag!

Remember to never have to many tabs open while playing

Diamond if this helped :D