I would tell the family to stop streaming music, get teenagers off the ip phone, and videos because it is cutting into your UO play-time. Do a speakeasy.net test to watch at various times how your bandwidth is affected. The poll report isn't showing an issue. But your network may be affected more in the evening compared with early morning.
You may have to switch your work schedule around so other family members or community on your network ring aren't affecting your play time.
Looking at your poll report, you can see there are no long packet delays compared with the average. Each packet worst is really very close to the average indicating over the few seconds the poll report was captured there is no network issue. Looking at a bandwidth report may help you see where the issue is because you could have a great connection for the minimum size ping packets, but once the mtu packet size increases that longer packet has to wiggle through the network like a long worm. Ping packets are length different than the real datagram packet your UO application sends or is defined by your operating system network driver to get to the server. A point along your polled route could have a bandwidth issue.
What kind of access point do you have from home to ISP? Like some people have wifi to a mountaintop and in the spring trees grow just enough to wiggle the doug fir needle in the wind blocking the wifi transceiver just enough to affect their connection. In that case you have to climb a tree in your neighbors yard and cut the branch or top off. Do that when they are at work and wont hear the chainsaw.
-Lorax
P.s.
Looks like a great connection in my opinion. You have an extra 40ms to go from Oklahoma(?) to San Jose, which seems good. Your connection from home to the long haul fiber looks great and the time from SJ to ea looks great.