If you can see and hear this video, you should be able to see the livestream(s) and other videos.
The recommended download speed to view/consume online videos and streaming sessions in HD is 5 Mbps Download (Some references will state 1-4 Mbps for video conferencing, which is likely okay; 5 Mbps or greater will ensure the highest quality.) Anything more is great! Anything less and there is the chance of degraded quality/performance.
To test your internet speed, click here. Again, you should have at least 5 Mbps (download), while 10 or more is great!
Here is a good article that discusses different internet speeds and what to do and expect.
Other devices on your home network, such as other computers, phones, tables, smart TVs and other “smart” devices, all take up capacity on your network. Turn off or disable any/all unnecessary devices.
Try accessing from your mobile phone’s hotspot if you have one. Some cellular hotspots have very fast internet connections. Click here for an article with instructions to connect to a cellular hotspot.
Or, you can head down to your local coffee shop or similar who provides public WiFi. **NOTE – these public areas are not necessarily “secure,” so proceed at your own risk, especially if you or your company has guidelines about accessing the internet on public WiFi networks.