RBR50 Wifi Mesh Internet is Painfully Slow

Thanks for pointing out that question. 

I am using a macbook pro, iphone 12 min and a late imac 2015 model.

I have been using: google speed test, spectrum speed test, ookla speed test and ookla speed test app on iphone along with spectrum/google speed test on chrome browser. 

I have done a factory reset at this point. I feel as though it has not improved.