Remote access is not something the ASIAIR can do or will ever do. It's a tiny little compute device with a sole purpose that it has to dedicate all its limited hardware to.
You can connect the ASIAIR to a network either via Station Mode (Wifi) or ethernet cable (ASIAIR Plus/Pro only - and if using this method you should turn off Station Mode).
However, it is up to you to then setup remote access to that network.
And that varies depending on the equipment you're running, how you've setup everything, the type of internet connection you have to the network the ASIAIR is running , etc.
Then you also have to consider all the same points to the the place where you are connecting from remotely.
This then also impacts the speed.
So if you have a "blazing fast" network at one end but it has to go through slower connections before getting to the ASIAIR at the other end - it will only ever go at the speed of the slowest connection.
Point is this all comes down to networking.
And I, personally, don't want the ASIAIR to act like an IoT device. That opens up a whole other can of worms.
