I have several node and interface charts for executive dashboards, most showing only the sum of the data. The time to load these charts is agonizingly slow even though I have plenty of NPM and SQL server horsepower. I've had to time-limit the initial graphs so people don't think that Orion has hung. This is probably due to inefficient SQL querying, but the effect is that "free" MRTG (which builds graphs in the background for snappy display) is significantly faster than "paid" Orion. Custom multi-object resource graph performance is in serious need of a speed boost.
