So the Geo-Filter shows your ping direct to the server. Games have processing delay, not all games choose to include this in their ping calculation but CoD does which is why it will be higher, as you mentioned the ping seems about right in both cases. As for the latency bar I couldn't say how that is being calculated.
We're still improving the results from the tests on the router, it uses a speedtest you probably haven't used before and it's possible that it isn't selecting the closest server.