Andi Fugard M0INF
I haven't used Grafana, so I'm not sure.
R has a huge number of packages for pretty much every visualisation and statistical analysis in existence, so there's likely to be something. It's also fairly easy to get from a local analysis to a web app, e.g., here is a simple visualisation grabbing the last hour's worth of sent/receives to/from IO91: https://andif.shinyapps.io/wspr_app/
(It also happens to be software I can use!)
Anyway, shall have a think :)