# CPU jump to 100% in Firefox after moving cesium map a few times

**URL:** <https://community.cesium.com/t/cpu-jump-to-100-in-firefox-after-moving-cesium-map-a-few-times/17106>\
**Category:** General\
**Created:** [January 31, 2022, 2:43pm UTC](https://community.cesium.com/t/cpu-jump-to-100-in-firefox-after-moving-cesium-map-a-few-times/17106 "2022-01-31T14:43:40Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![tthanhnguyen](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/tthanhnguyen/32/3476_2.png) [@tthanhnguyen](https://community.cesium.com/u/tthanhnguyen)\
**Post date:** [January 31, 2022, 2:43pm UTC](https://community.cesium.com/t/cpu-jump-to-100-in-firefox-after-moving-cesium-map-a-few-times/17106/1 "2022-01-31T14:43:40Z")

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Open cesium map with Firefox and moving/zooming the map many times then Firefox (64 bit version 96.0.2) CPU went up to 100%

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**Author:** ![sam.rothstein](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/sam.rothstein/32/6584_2.png) [@sam.rothstein](https://community.cesium.com/u/sam.rothstein)\
**Post date:** [January 31, 2022, 3:26pm UTC](https://community.cesium.com/t/cpu-jump-to-100-in-firefox-after-moving-cesium-map-a-few-times/17106/2 "2022-01-31T15:26:08Z")

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Hi @tthanhnguyen,

Welcome to the community! I have also witnessed this behavior - do you have any questions in particular?

Best,  
Sam

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**Author:** ![tthanhnguyen](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/tthanhnguyen/32/3476_2.png) [@tthanhnguyen](https://community.cesium.com/u/tthanhnguyen)\
**Post date:** [February 2, 2022, 4:02pm UTC](https://community.cesium.com/t/cpu-jump-to-100-in-firefox-after-moving-cesium-map-a-few-times/17106/3 "2022-02-02T16:02:37Z")

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Hi,  
I just wonder if there is a work around/solution to fix the issue?  
Thanks  
Thanh

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**Author:** ![sam.rothstein](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/sam.rothstein/32/6584_2.png) [@sam.rothstein](https://community.cesium.com/u/sam.rothstein)\
**Post date:** [February 8, 2022, 12:16am UTC](https://community.cesium.com/t/cpu-jump-to-100-in-firefox-after-moving-cesium-map-a-few-times/17106/4 "2022-02-08T00:16:57Z")

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Hi @tthanhnguyen,

Unfortunately, I can’t think of a simple solution. If possible, adding fewer primitives and entities to your `Scene` would likely improve the performance of your application. However, if the camera is moved erratically, CesiumJS will use an increased amount of processing power.

Best,  
Sam