Comments on dropouts / lag for livestreaming in general (not just with this program):
- Low CPU machines (like Raspberry Pi) may need to cut back on resolution.
- live streaming takes an excellent quality (not necessarily high speed) Internet connection in general. Some DSL / wireless internet provider have really spotty performance. You might not notice this with HD Netflix due to deep buffering, but it will show up on livestreaming.
- Do Skype / Duo / FaceTime work excellently for you on your network? If not, live streaming will not work well.
- Try a wired (Ethernet) connection to the Internet. I have seen very expensive consumer WiFi APs that had bad performance in real world strenuous use (like live streaming).
In general since this program generates command lines that are run by FFmpeg, try just using FFmpeg by itself to write to a video file. This is a known issue with Wayland--instead use X11. See FFmpeg Desktop capture docs.
Particularly when streaming with a static background -image, YouTube will often warn in "Stream Health":
The stream's current bitrate is lower than the recommended bitrate.
Disregard this warning as long as your image looks OK.