HDHomerun terrible performance

Is there something seriously wrong with this plugin? I get constant dropped audio, choppy video and quite often buffering. Why the hell is it buffering when it’s all on my internal network? It IS operating over wifi currently but the router is new and high performance (ASUS RT-N66 – Dual Band up to 900 Mbps) and has zero problems streaming movies and tv off our NAS or via Netflix/Amazon Prime.

I did try to setup PVR capability on it a couple weeks ago but could never get it working, I disabled/uninstalled all that though so I don’t think it’s that. I’ve also upgraded to the latest version of the HDHomerun plugin. I’m on Jarvis. Any ideas what to try for this?