It only showed 2 hours because that's when the stats began; it will show longer over time (I think.) The difficulty is notated wrong - that's meant to be pool % not T, I'd already informed the author and it will be fixed.
No problem -CK, thanks for taking a look.
With reference to the charts are only 2 hours in length, its been monitoring for about 5 hours now but only 2 hours are shown.
It would be nice if this was 24hour if you can do it without too much hassle or as an extension selectable from 30minutes to 7 days maybe?
Anway, thank you and the author for your efforts.