This tuning is done via the settings gear, which optimizes the screen to screen latency based on one of the three scenarios: The banner keeps you informed of the state of your connection, allows you to quick disconnect or reconnect to the same sink and allows you to tune the connection based on what you are doing. Starting with Windows 10 build 17682, just like remote desktop you’ll see a control banner at the top of your screen when you’re in a session. You can use this to share what you’re doing on your PC, present a slide show, or even play your favorite game on a larger screen. Miracast is a wireless technology your PC, laptop, or tablet can use to project your screen to wireless TVs, projectors, and streaming media players that also support Miracast.

How to Connect to a Wireless Display with Miracast in Windows 10