# Performance issue on poor network

**URL:** <https://devforum.zoom.us/t/performance-issue-on-poor-network/103483>\
**Category:** iOS\
**Created:** [February 8, 2024, 3:51pm UTC](https://devforum.zoom.us/t/performance-issue-on-poor-network/103483 "2024-02-08T15:51:13Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![sagaya.abdulhafeez](https://avatars.discourse-cdn.com/v4/letter/s/53a042/32.png) [@sagaya.abdulhafeez](https://devforum.zoom.us/u/sagaya.abdulhafeez)\
**Post date:** [February 8, 2024, 3:51pm UTC](https://devforum.zoom.us/t/performance-issue-on-poor-network/103483/1 "2024-02-08T15:51:13Z")

</div>

We are currently getting a crash from the Zoom SDK whenever our user enters a meeting. After much investigation we found out this issue is directly related to the latency of the users internet and users with poor network gets the crash when they join a meeting.

**Which iOS Meeting SDK version?**  
v5.17.6.13115

**To Reproduce(If applicable)**  
Steps to reproduce the behavior:

1. Go to settings app
2. Click on developer
3. Click on Network Link Conditioner
4. Turn it on and set the value to 3G
5. Try joining a meeting
6. Get crash with log

```auto
Thread Performance Checker: -[AVCaptureSession startRunning] should be called from background thread. Calling it on the main thread can lead to UI unresponsiveness

```

**Screenshots**

**Smartphone (please complete the following information):**

- iPhone 15 Pro Max
- iOS 17.2

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [March 10, 2024, 1:51am UTC](https://devforum.zoom.us/t/performance-issue-on-poor-network/103483/2 "2024-03-10T01:51:55Z")

</div>

Closed on March 10, 2024, 1:51am UTC

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.