We recommend using these settings when exporting your files for upload. If you do upload a file that is larger than these settings, we'll re-encode it for you to make it easier for playback.
Another thing to note about simulated live is that your file will be playing back over an actual live stream, so there will be a little bit of a delay between when the file starts playing, and when it shows up in the player for your viewers. We recommend adding a little bit of content before and after your stream to account for this. Countdowns before the stream are a great idea, you could also add slides or music.