A lagging presentation or video stream can be due to 4K monitors being used.
The best resolution is to insert 1920x1080 EDID emulator in the monitor.
If that is not possible, the other option is to set the resolution according to these instructions: https://docs.microsoft.com/en-us/microsoftteams/rooms/rooms-operations#scale-and-resolution
Note: Changing monitors or port may erase these settngs.