The web application we use is optimized for all devices and all browsers. Having said that, sometimes older versions of an operating system or its specific settings may create issues. Be sure to update your operating system and the browser you use if you are having trouble. Older versions of your operating system may stop working appropriately as our software updates. For example, if you are using IOS 13 or safari 13, its time to update as the web application is no longer working to support those assets.
Also, if you are on a shared wifi your device might not be the priority device which may slow down what you are streaming. There may be momentary interruptions in your wifi and since wifi is invisible, you wont know.
Keeping everything up to date and being aware that your network is working should eliminate any streaming issues. We do not throttle our presentations so even in periods of high use, no one experiences a slowdown.