I'm in the process of setting up DD-WRT on my Mesh nodes because I can only get these speeds (particularly upload) when my Mesh system's main node is in "setup mode" like it is right now lol. Once it has been set up (using Linksys' firmware) within a week it
'runs out of NVRAM' for maintaining the Device List table - which is ridiculous considering how much space it actually has. But, I've been living with it (and hard resetting the mesh every 6 months or so when I need to make changes), and I've had enough.