Hey there,
The difference between Home and World latency can be found here. It is possible for those two connections to be in separate data centers as well, which could explain the difference in latency.
For example you could have your World connection going to the US West data center (based on the realm you’re playing on) and your Home connection going to the US Central data center. This shouldn’t happen very often, but it’s technically possible.
Looking at your account I see you have a character on Darkspear realm which is a West coast realm and on Baelgun which is a Central realm. So you should expect to have a bit higher latency when playing on the Baelgun realm if you are located in CA.
The traceroute looks great and I don’t suspect WinMTR will show any issues, but you’re welcome to run a WinMTR to the West and Central IPs and compare them.