Zoom lags or freezes during meetings

Solution 1: Change the connection

On a mobile device, move to an area with a better connection to see if this helps. On PCs, stick with a wired Ethernet connection, if possible. Otherwise, get close to the local router and use the 5GHz connection — it’s faster and (typically) less congested. 

Solution 2: Check the connection speed

Aim for the right internet speeds for a successful video chat. When talking with multiple people in a team setting, you want the upload speed around 1Mbps and the download speed around 600Kbps. You can always check your current speeds with a quick internet speed test. If the speeds are undesirable, repeat Solution 1. To check the connection speed, click here.

A good internet speed is at or above 25 Mbps. These speeds will support most online activity, such as HD streaming, web browsing and downloading files.

Solution 3: Adjust Zoom settings

Try unchecking the HD and Touch Up My Appearance options.
To access these options, click the cog icon (Settings) on the main screen of the Zoom desktop app, or click the arrow icon within the video camera icon during a call and then select Video Settings on the pop-up menu. After that, select the Video category listed on the left (if it isn’t already selected).

By unchecking these two options, you will decrease the amount of bandwidth your video connection requires (and the overhead on your system’s hardware), which can help fix problems with lag.