So in addition to my Cop for Tech Director nomination, I’m going to add knarF for MA IT Director! If you can get timing and scoring and Live+ sorted, it will be a huge victory!
Check all your devices and make sure any IOT type devices (thermostats, smart lights/switches, alexa's and the like) are on the 2.4 band. That could free up space on the 5Ghz band for more power hungry devices such as computers, phones, streaming devices. You may find your network load is just not balanced very well.