see this also report 100+ms latency.
and maidenhead (bont know ip tho so cant trace)
and birmingham
coventry also
tracert to the website of the company who runs the coventry test.
1 <1 ms <1 ms <1 ms home.gateway2 [192.168.1.1]
2 48 ms 13 ms 26 ms cpc14-leic14-2-0-gw.8-1.cable.virginmedia.com [8
2.30.112.1]
3 13 ms 25 ms 10 ms leic-core-2b-ae6-749.network.virginmedia.net [82
.3.35.109]
4 20 ms 24 ms 35 ms nrth-bb-1c-ae5-0.network.virginmedia.net [62.253
.174.117]
5 38 ms 19 ms 7 ms nrth-bb-1b-ae11-0.network.virginmedia.net [62.25
3.174.109]
6 29 ms 33 ms 22 ms tele-ic-4-ae0-0.network.virginmedia.net [62.253.
174.18]
7 15 ms 22 ms 30 ms ge1.the-bgp1.warwick.net.uk [195.66.224.113]
8 17 ms 25 ms 29 ms gi0-283.np-bgp1.warwick.net.uk [94.125.133.174]
9 114 ms 114 ms 161 ms 94.125.135.18
when last hop only shows jump it usually means return path is affected, so the return path is needed to diagnose the issue.