I think the jitter you refer to unavoidable due to the nature of VM's DOCSIS broadband FTTA (Fibre To The Area) design.
The base latency you have seem higher than most?. It is hard to tell but it is nearly 20ms? Don't forget this is from the TB Firebrick device that is probing your WAN ip address exposed by your SuperHub.
The acid test would be a latency/jitter test to one of your gaming servers, see what this is showing you. Here's 60 pings to Google's DNS server which is a good test as it is always close, in network terms:
Code:
Target Name: google-public-dns-a.google.com
IP: 8.8.8.8
Date/Time: 09/07/2018 13:42:34
1 1 ms 0 ms 1 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 1 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 1 ms 0 ms 0 ms 0 ms 0 ms 1 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 1 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 0 ms 1 ms 0 ms 0 ms 0 ms 0 ms 0 ms 1 ms router.asus.com [192.168.0.1]
2 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * [-]
3 11 ms 19 ms 14 ms 9 ms 9 ms 30 ms 12 ms 9 ms 24 ms 11 ms 9 ms 10 ms 20 ms 9 ms 9 ms 10 ms 14 ms 10 ms 9 ms 10 ms 9 ms 11 ms 9 ms 15 ms 10 ms 9 ms 10 ms 11 ms 10 ms 8 ms 12 ms 10 ms 10 ms 10 ms 10 ms 9 ms 15 ms 8 ms 9 ms 18 ms 9 ms 11 ms 13 ms 10 ms 12 ms 11 ms 9 ms 10 ms 10 ms 9 ms 9 ms 9 ms 9 ms 19 ms 11 ms 10 ms 9 ms 9 ms 9 ms 12 ms sotn-core-2a-xe-023-0.network.virginmedia.net [62.255.45.101]
4 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * [-]
5 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * [-]
6 18 ms 17 ms 16 ms 17 ms 25 ms 16 ms 21 ms 17 ms 17 ms 16 ms 17 ms 17 ms 16 ms 17 ms 17 ms 16 ms 22 ms 17 ms 18 ms 16 ms 17 ms 32 ms 17 ms 17 ms 16 ms 16 ms 18 ms 18 ms 16 ms 17 ms 17 ms 16 ms 16 ms 18 ms 16 ms 17 ms 17 ms 17 ms 16 ms 16 ms 16 ms 17 ms 16 ms 16 ms 16 ms 17 ms 17 ms 16 ms 16 ms 17 ms 24 ms 17 ms 18 ms 16 ms 16 ms 17 ms 16 ms 17 ms 17 ms 16 ms eislou2-ic-1-ae3-0.network.virginmedia.net [62.254.85.145]
7 19 ms 20 ms 19 ms 20 ms 20 ms 20 ms 22 ms 20 ms 20 ms 23 ms 20 ms 20 ms 20 ms 20 ms 19 ms 21 ms 20 ms 21 ms 20 ms 19 ms 20 ms 22 ms 21 ms 22 ms 20 ms 21 ms 20 ms 20 ms 19 ms 20 ms 20 ms 20 ms 20 ms 24 ms 20 ms 21 ms 19 ms 19 ms 19 ms 20 ms 21 ms 21 ms 21 ms 19 ms 32 ms 20 ms 21 ms 21 ms 22 ms 20 ms 21 ms 24 ms 20 ms 23 ms 20 ms 19 ms 19 ms 20 ms 21 ms 20 ms 6-14-250-212.static.virginm.net [212.250.14.6]
8 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * [-]
9 23 ms 22 ms 22 ms 22 ms 22 ms 22 ms 24 ms 21 ms 22 ms 22 ms 21 ms 25 ms 22 ms 22 ms 22 ms 22 ms 22 ms 21 ms 22 ms 23 ms 22 ms 23 ms 22 ms 25 ms 22 ms 23 ms 22 ms 22 ms 22 ms 22 ms 22 ms 22 ms 32 ms 26 ms 22 ms 22 ms 22 ms 21 ms 22 ms 22 ms 22 ms 22 ms 22 ms 21 ms 23 ms 24 ms 22 ms 21 ms 22 ms 23 ms 23 ms 24 ms 26 ms 21 ms 22 ms 21 ms 25 ms 22 ms 22 ms 22 ms [216.239.56.194]
10 19 ms 20 ms 18 ms 20 ms 23 ms 20 ms 19 ms 21 ms 19 ms 36 ms 19 ms 20 ms 20 ms 20 ms 19 ms 19 ms 19 ms 20 ms 19 ms 23 ms 23 ms 19 ms 18 ms 23 ms 19 ms 19 ms 20 ms 20 ms 19 ms 19 ms 26 ms 20 ms 31 ms 23 ms 19 ms 19 ms 20 ms 20 ms 20 ms 18 ms 23 ms 19 ms 20 ms 28 ms 22 ms 21 ms 20 ms 19 ms 19 ms 20 ms 20 ms 19 ms 29 ms 19 ms 19 ms 19 ms 19 ms 19 ms 21 ms 22 ms [108.170.230.165]
11 23 ms 17 ms 19 ms 18 ms 17 ms 17 ms 20 ms 17 ms 17 ms 17 ms 17 ms 17 ms 17 ms 17 ms 18 ms 17 ms 17 ms 17 ms 17 ms 17 ms 17 ms 18 ms 18 ms 17 ms 17 ms 17 ms 17 ms 17 ms 17 ms 17 ms 17 ms 17 ms 17 ms 18 ms 17 ms 21 ms 18 ms 18 ms 17 ms 21 ms 17 ms 16 ms 17 ms 17 ms 17 ms 28 ms 17 ms 18 ms 17 ms 17 ms 17 ms 17 ms 17 ms 17 ms 19 ms 17 ms 17 ms 17 ms 17 ms 17 ms google-public-dns-a.google.com [8.8.8.8]
For comparison, here's my TBB graph:
