Metrics/telemetry for UI responsiveness, rendering time?

Hey, Sisense community, I've noticed that Sisense seems to send a bunch of log data back to its server, which is good, but (a) I don't see (based on a quick-ish scan) rendering-time data or anything measuring responsiveness, nor (b) do I see any metrics on the monitor.sisense.com dashboard for UI responsiveness.

I'd love to know how sluggish our dashboards appear to our users.

Is there any such thing? If so, how do I get it?

Thanks.