On my system, Duet provides a much better experience than AirDisplay. Working with Apps is very fluid. Videos play back just find. It is not as fast as my MacBook's built in display, but I have to look for any sluggishness.
There are some bugs. My iPad was stuck saying Duet Display was "Launching". I noticed that the MacBook's Display preferences showed the iPad as being in portrait and I had it physically in landscape. Turning the iPad to portrait orientation allowed it to work.
I noticed some issues with windows getting completely cropped off the iPad when dragging between screens.
You should also note that the Duet preferences include changing the frame rate and the resolution, by default these appear to be set to 30 fps and Regular (non-Retina).
UPDATE: seeing a few more visual bugs. For example, the corners of windows have broken corners. I continue to be impressed by the speed performance. Hopefully, we will see bug fixes. (Although with the looming christmas app store review shutdown, that might take a while)
There are some bugs. My iPad was stuck saying Duet Display was "Launching". I noticed that the MacBook's Display preferences showed the iPad as being in portrait and I had it physically in landscape. Turning the iPad to portrait orientation allowed it to work.
I noticed some issues with windows getting completely cropped off the iPad when dragging between screens.
You should also note that the Duet preferences include changing the frame rate and the resolution, by default these appear to be set to 30 fps and Regular (non-Retina).
UPDATE: seeing a few more visual bugs. For example, the corners of windows have broken corners. I continue to be impressed by the speed performance. Hopefully, we will see bug fixes. (Although with the looming christmas app store review shutdown, that might take a while)