Hi DSTM!
I have a question about telemetry. The telemetry message does not display the latest, up-to-date information, but only the average value? It is quite logical to see the actual, the latest information, taken from the log of the miner, because possibly overclocking was increased, or other manipulations were performed and the average readings would not immediately reflect this change. In my opinion, the current hash is more important in monitoring than the average, which is smeared in time.
You can access current performance values via json-rpc - it reports both current and average values.
The idea behind the averages on the webui: you don't look at it all the time - so if you check it let's say once a day you really want to know how your systems performs on average - however this has the drawbacks you've mentioned. I think it makes sense to add current values to the webui.