Mirroring to an external display

[Sami13496]

I have MacBook Pro 13 inch 2019 model with intel processor. I use it in clamshell mode with Samsung 4K display via USB-C. When I do that, the laptop heats up considerably and I feel it becomes slower compared if I use it without internal display. Understandably driving external 4K display is more demanding. But I'm curious. If I connect Apple TV to the external monitor and mirror my MBP display that way, will it require less performance? I know it will probably lag but just from performance point of view?

 

[Basic75]

If you have an Apple TV you should try it. Remember that AirPlay screen mirroring to an Apple TV maxes out at 1080p, that might limit the performance impact.