Diablo 3 in-game ping higher than realtime RTT graph

The various pings using the calculated lowest RTT routes are:

US: ~180ms
EU: ~168ms
Asia: ~67ms

However, my in-game ping is as follows:
US: ~210ms
EU: ~210ms
Asia: ~100ms

Why is that so?

Could you please confirm that it’s also same with Full VPN mode enabled?

Not sure that this issue is caused by a problem of mudfish game item but this issue also could be caused by that checking RTT method is different between the game client and mudfish program.

Currently we’re using ICMP prototol to IP to measure the ping between your desktop and “Europe (Netherlands)” desitnation for example.