I am using pingplotter to help someone troubleshoot intermittent slowness when using a web application. I've had them run pingplotter for around 5 hours yesterday. Given that I don't a whole lot of practice diagnosing issues based on pingplotter yet I'd appreciate any assistance.

It seems to be that the graph is displaying a fair amount of up and down regarding latency, which could be a cause of intermittent poor performance. Am I in the ballpark?