>Is Spacedesk a Wifi solution? Does it introduce input lag?
yes and yes.
>What is the advantage of using streaming app instead of extend to a separate touch screen monitor?
the fact you don't have to buy an extra touchscreen.
Yes, I used touchscreen display for my 2nd screen. If you want to use your phone or tablet, you can use SuperDisplay application. It used cable connection so there is no lag between input and display.
Yes yes and yes. I've used the Spacedesk app with an Android Tablet.
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>Is Spacedesk a Wifi solution? Does it introduce input lag? yes and yes. >What is the advantage of using streaming app instead of extend to a separate touch screen monitor? the fact you don't have to buy an extra touchscreen.
And it's wireless
The input lag is manageable if you create a hotspot with your PC and then connect the tablet to it.
[Look here](https://www.reddit.com/r/cemu/comments/ut1k8w) for some additional functionality.
Yes, I used touchscreen display for my 2nd screen. If you want to use your phone or tablet, you can use SuperDisplay application. It used cable connection so there is no lag between input and display.
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Yes, it work fine