The blue is more indicative of actual jitter and is probably a bit of an overstimate. That graph is just fine though, looking good.
Swift update on my own, capacity in the area has been doubled and things are more calm, although they do still have their kinda busy periods, this weekend not being one of them thanks to the sunshine and the rugby!
PING 194.168.4.100 (194.168.4.100): 32 data bytes
40 bytes from 194.168.4.100: icmp_seq=0 ttl=251 time=7.2 ms
40 bytes from 194.168.4.100: icmp_seq=1 ttl=251 time=7.5 ms
40 bytes from 194.168.4.100: icmp_seq=2 ttl=251 time=9.6 ms
40 bytes from 194.168.4.100: icmp_seq=3 ttl=251 time=10.3 ms
40 bytes from 194.168.4.100: icmp_seq=4 ttl=251 time=9.4 ms
40 bytes from 194.168.4.100: icmp_seq=5 ttl=251 time=11.5 ms
40 bytes from 194.168.4.100: icmp_seq=6 ttl=251 time=10.5 ms
40 bytes from 194.168.4.100: icmp_seq=7 ttl=251 time=9.5 ms
40 bytes from 194.168.4.100: icmp_seq=8 ttl=251 time=10.8 ms
40 bytes from 194.168.4.100: icmp_seq=9 ttl=251 time=8.4 ms
--- 194.168.4.100 ping statistics ---
10 packets transmitted, 10 packets received, 0% packet loss
round-trip min/avg/max = 7.2/9.4/11.5 ms
