Inconsistent Live Caller ID Lookup Performance

I've noticed delays with the Live Caller ID Lookup feature, taking around 3 to 6 seconds to complete, even on repeated lookups. This seems odd since there's no server activity during these repeats, suggesting the information might be coming from a cache. Most of the time, it’s fast, but there are cases when it's unexpectedly slow, and I haven’t quite figured out the pattern yet. Is anyone else seeing this issue?

FB number FB15372765 - with sysdiagnose and video demonstrating the delay.

Inconsistent Live Caller ID Lookup Performance
 
 
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