My minecraft is lagging when when teamspeak is open

[ArgaJones]

How much ram do you have allocated to minecraft?

 

[Sepyz]

How much ram do you have allocated to minecraft?

Actually, according to Optifine:

Lauch Minecraft with less memory (yes, really). Usually it does not need more than 350 MB and runs fine on all settings with the default texture pack. By default java allocates way too much memory (1GB) which may get swapped to disk and the overall performance may suffer a lot.

I run my game with 350 MB allocated, and it actually runs extremely smoothly.
RAM is most likely not the issue, but for the OP, I recommend allocating the previously stated amount.
A tutorial on how to do this is located here. (Towards the bottom of the post)

 

[SixZoSeven]

Hey there -
Please take a screenshot showing your lagometer in game.

 

[Zinc // Akash754]

Try the task manager trick, if you don't know what that is....

Right click on your task bar, and click start task manager.

Go to the properties tab and find "Java" or "javaw" and right click it.

Hit "Set priority" then "High"

If you're on a pc that is... Mac I have no clue xP

Tell me if this works!

Um i did that but there was no properties tab

 

[Mint_Sibs]

Um i did that but there was no properties tab

Just go to all the tabs until you find javaw (2 of them should be there) end process on the one with less data, then set priority high on the one with more.

 

[WilloWizard]

Did your mother ever do this to your computer?