# System CPU usage

**URL:** <https://community.umbrel.com/t/system-cpu-usage/16865>\
**Category:** Support and Troubleshooting\
**Created:** [May 3, 2024, 4:04pm UTC](https://community.umbrel.com/t/system-cpu-usage/16865 "2024-05-03T16:04:30Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![hidden](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.umbrel.com/hidden/32/5673_2.png) [@hidden](https://community.umbrel.com/u/hidden)\
**Post date:** [May 3, 2024, 4:04pm UTC](https://community.umbrel.com/t/system-cpu-usage/16865/1 "2024-05-03T16:04:30Z")

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Hi team,

UmbrelOS 1.1.1 is installed a few days now.  
System CPU usage ist almost about 70%.

Bitcoin Core is using about 20% and Portainer less than 1 %.

What can i do to reduce the system usage?  
Is that normal?

Thanks!

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<div class="post-metadata">

**Author:** ![bojan](https://avatars.discourse-cdn.com/v4/letter/b/b782af/32.png) [@bojan](https://community.umbrel.com/u/bojan)\
**Post date:** [May 3, 2024, 8:42pm UTC](https://community.umbrel.com/t/system-cpu-usage/16865/2 "2024-05-03T20:42:31Z")

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Is the Bitcoin still downloading/syncing the blockchain? That might use a lot of CPU.  
How many other apps do you have running?  
And how good is your CPU, because 70% of a weak one makes more sense.

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<div class="post-metadata">

**Author:** ![hidden](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.umbrel.com/hidden/32/5673_2.png) [@hidden](https://community.umbrel.com/u/hidden)\
**Post date:** [May 4, 2024, 11:15am UTC](https://community.umbrel.com/t/system-cpu-usage/16865/3 "2024-05-04T11:15:52Z")

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Yes its still downloading.  
But as the CPU usage is listed seperated for system and bitcoin i did not assume thats the problem.