# CPU usage (Zoom meetings via Browser)

**URL:** <https://devforum.zoom.us/t/cpu-usage-zoom-meetings-via-browser/23769>\
**Category:** Web\
**Created:** [July 10, 2020, 11:08am UTC](https://devforum.zoom.us/t/cpu-usage-zoom-meetings-via-browser/23769 "2020-07-10T11:08:24Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![apalm](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/apalm/32/11148_2.png) [@apalm](https://devforum.zoom.us/u/apalm)\
**Post date:** [July 10, 2020, 11:08am UTC](https://devforum.zoom.us/t/cpu-usage-zoom-meetings-via-browser/23769/1 "2020-07-10T11:08:24Z")

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Hi,

I am using the Zoom API and the Web SDK to offer meetings via web browser (no offer to join via zoom client). The CPU usage from the attendees is 100% by opening a meeting. And the video/audio begins stuttering and/or A/V is out of sync.

There are more than 100 attendees in this meeting. The video and sound of the attendees are off.  
Are there any settings needed to reduce the CPU usage?

I already found that topic here some months ago but didn’t find a solution to reduce the CPU usage.

Thx  
Andreas

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**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [July 14, 2020, 10:00pm UTC](https://devforum.zoom.us/t/cpu-usage-zoom-meetings-via-browser/23769/2 "2020-07-14T22:00:03Z")

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Hey @apalm,

Can you let us know what browser you and your attendees are using?

It would be great if you could link to the other topic you found.

> [@Meeting bad audio and bad video](https://devforum.zoom.us/t/meeting-bad-audio-and-bad-video/16359/33):
>
> Hey @nvivot, Thanks for sharing this info with the community. We are working to fix the CPU issue on Chrome, but it depends on a Chrome release. Stay tuned. -Tommy

Thanks,  
Tommy

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**Author:** ![apalm](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/apalm/32/11148_2.png) [@apalm](https://devforum.zoom.us/u/apalm)\
**Post date:** [July 16, 2020, 11:11am UTC](https://devforum.zoom.us/t/cpu-usage-zoom-meetings-via-browser/23769/3 "2020-07-16T11:11:31Z")

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Hi Tommy,

thy for your reply.

I already found it here:

> [@Very high CPU load, audio/video problems for Web SDK](https://devforum.zoom.us/t/very-high-cpu-load-audio-video-problems-for-web-sdk/7937):
>
> Hi, using your latest web SDK 1.7, we are getting very high CPU loads on our platforms. This was acceptable on our ‘stronger’ models, but is very bad on our ‘low-end’ model (nevertheless a 4x core Intel cpu i3-7100U CPU @ 2.40GHz), as video / audio begins stuttering and/or A/V is out of sync the zoom application is basically the only application running on the machine, occupying the CPU most of the time. if muting VIDEO from the local side (where we see the performnace problems / high cp…

Have there been any updates concerning this issue?

TO your question about the browser: I can’t ask them all. But some of them used:  
Firefox 78.0.1 (64-Bit)  
Chrome, Ver. 83.0.4103.116 (about 15 attendees are using this version)

Maybe you can answer the following question for me to understand a bit more about the API:

1. Does it make sense to offer a meeting for 150 attendees ONLY via browser?
2. Should I reduce the video quality? If yes, where can I do this?
3. Is there any other solution to offer 20 meetings for 150 attendees? I made a website with these 20 meetings and the attendees can easily join the meeting. They only need to enter their name to join. This is much easier than using the desktop client.

Thx  
Andreas

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**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [July 20, 2020, 8:23pm UTC](https://devforum.zoom.us/t/cpu-usage-zoom-meetings-via-browser/23769/4 "2020-07-20T20:23:54Z")

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Hey @apalm,

We are in the final stages of fixing the CPU issues. (CS-1387)

> [@apalm](#):
>
> Does it make sense to offer a meeting for 150 attendees ONLY via browser?

I would suggest using the Zoom App for that amount of attendees.

> [@apalm](#):
>
> Should I reduce the video quality? If yes, where can I do this?

The Web SDK does not support reducing the video resolution.

> [@apalm](#):
>
> Is there any other solution to offer 20 meetings for 150 attendees? I made a website with these 20 meetings and the attendees can easily join the meeting. They only need to enter their name to join. This is much easier than using the desktop client.

An alternative solution would be to distribute the join\_url to the attendees which will open the Zoom app and put them into the meeting.

Thanks,  
Tommy

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**Author:** ![DeveloperBot](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developerbot/32/12632_2.png) [@DeveloperBot](https://devforum.zoom.us/u/DeveloperBot)\
**Post date:** [August 21, 2020, 10:47pm UTC](https://devforum.zoom.us/t/cpu-usage-zoom-meetings-via-browser/23769/5 "2020-08-21T22:47:22Z")

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Closed on August 21, 2020, 10:47pm UTC



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**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [October 26, 2020, 4:02pm UTC](https://devforum.zoom.us/t/cpu-usage-zoom-meetings-via-browser/23769/6 "2020-10-26T16:02:15Z")

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Hey @apalm ,

We are working to fix this in the 1.9.0 Web SDK release.

Stay updated here:

> **[Web SDK - Upcoming Changes - Stay Up To Date - Documentation](https://marketplace.zoom.us/docs/guides/stay-up-to-date/upcoming-changes/web-sdk)**
>
> Web SDK

Thanks,  
Tommy
