I have two EAPs that are on different floors but not totally on opposite ends so they do overlap.  

What I'm seeing is couple streaming devices that are close to both APs are constantly flipping between the APs, I've also adjusted Tx Power but cannot go lower as it would reduce the wifi range. I've went as far as creating a separate 5GHz SSID on each AP so these devices only connects to a single AP that is physically closest and have no chance to roam. 

I also have 2 troublesome IoT devices on 2.4GHz that also flip between the APs, which i wouldn't mind but the devices become unresponsive in the app and requires me to "reconnect" from Omada. I could create yet another separate SSID on a single AP just for these IoT devices but had hoped Omada would be smart enough to "roam" but not continuously or back and forth mutiple times in a span of 1 minute.

Are there better options besides separate SSID on a single AP?