Is my internet connection fast enough?

First check to see what resolution is the stream playing back on your laptop.

There is a resolution selector at the bottom right of the video(refer to the picture above). If it’s 1080 resolution, then check to see if your projector supports full 1080 resolution.

Supported resolutions are 1080p, 720p, 480p, 270p.

The player will automatically choose the highest resolution that your internet connection supports. If playback defaults to a lower resolution, do check that your internet connection has enough bandwidth for playback. 2.5 to 5 Mbps would be sufficient for 1080p

I am watching the stream at 1080p but my projector looks fuzzy

Do check if your projector is able to play back at 1080p. You might be receiving a HD stream but the projector might not support HD playback.