AeroAdmin performance is highly dependent on Internet connection stability, because this is a remote desktop application, in fact, it is a video stream. Please check remote client upload speed here www.speedtest.net
It's highly recommended it's not lower than 1Mbps.
However, if you see the connection is not stable you can adjust AeroAdmin settings on the operator side:
In menu Extras->Settings->Image:
1) Set FPS to 6-8
2) Image quality to 30-40
The lower these settings are, the more stable connection AeroAdmin will provide on low bandwidth and unstable Internet.