STREAM PIXELATED WHEN MOVING | OBS Forums

720p stream Using 720p live streaming resolution lets you ensure excellent stream confuration quality while freeing up enough processing power. Streaming in HD happens when your stream is running at 1080p @ 60fps. When you get started, you'll be able to stream at 720p @ 30fps.

720pstream, Downscaling video will always come with a quality loss. For best quality, play at the same resolution you plan to stream at. Failing that, a full-integer downscale will help maintain.