Chunks load extremely slow with CPU usage at almost 90% most of the time

Chunks load extremely slow with CPU usage at almost 90% most of the time - White Clock Reading at 2:12

Often when I want to play survival singleplayer in Minecraft, I can't. This is due to chunks taking ages to load whenever I move to a new area of my map, leading me to regularly hit the esc button to help load the chunks faster. After being tired of this regular behavior of chunk loading, I decided to open up task manager to see how my computer was performing. Now, RAM isn't an issue, but when ever I load new chunks, the CPU usages goes up to almost 90%. Once it even got up to 93%! Is there anything I can do to diagnose the problem?

I'm running windows 7, Minecraft 1.7.10, with a view distance of 7.






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How do I stop Minecraft using so much CPU?

Hit Win Key + R
  • Right click on \u201cComputer\u201d icon and select \u201cProperties\u201d
  • Select \u201cAdvanced System settings\u201d
  • Go to the \u201cSystem properties\u201d
  • Select \u201cSettings\u201d
  • Choose \u201cAdjust for best performance\u201d and \u201cApply\u201d.
  • Click \u201cOK\u201d and Restart your computer.


  • How far away do chunks stay loaded?

    In singleplayer, the chunk loading distance is one less than the render distance, as configured in Options. It follows the formula (2r - 3)2 = AoC where r is the selected render distance, and AoC is the area of chunks that are assigned an original player ticket (level 31 - entity ticking).

    Is Minecraft CPU bound?

    Unlike most games, Minecraft is more dependent on your CPU than your GPU. That means that the power of your CPU has a greatest impact on your computer's performance, and your CPU will often be the component limiting your FPS.




    Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

    Images: Stas Knop, DS stories, ready made, Ketut Subiyanto