I own these cameras and I have been trying to improve WIFI connectivity, because the only way to use these cameras is via WIFI.
In experimenting with both cameras I have come to the conclusion that there is something wrong in the software and/or hardware on the cameras that is underpowering the WIFI chip.
To demonstrate, my ASI2600MC camera is connected using a quality 12V 6amp power supply, with a 5Ghz AP literally 12 ft away and this is the connection on the camera:

From that distance you would expect much more than -70dBm, and I think that this is impacting my download speeds.
Can anyone help?