Internode Ping Spikes While Playing CS:GO

This is a typical ping log just now while playing CS:GO. I'm using ADSL2 and relatively close to the exchange (<500m). I've used an Asus RT-AC68U and a TP-Link Archer D9 and I get similar responsiveness with both:

64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=242 ttl=59 time=1119 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=243 ttl=59 time=1233 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=244 ttl=59 time=1249 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=245 ttl=59 time=644 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=246 ttl=59 time=91.9 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=247 ttl=59 time=712 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=248 ttl=59 time=1076 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=249 ttl=59 time=1222 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=250 ttl=59 time=1254 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=251 ttl=59 time=1291 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=252 ttl=59 time=1304 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=253 ttl=59 time=1274 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=254 ttl=59 time=520 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=255 ttl=59 time=24.4 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=256 ttl=59 time=24.2 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=257 ttl=59 time=25.2 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=258 ttl=59 time=114 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=259 ttl=59 time=451 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=260 ttl=59 time=898 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=261 ttl=59 time=1234 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=262 ttl=59 time=1296 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=263 ttl=59 time=1272 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=264 ttl=59 time=1285 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=265 ttl=59 time=1281 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=266 ttl=59 time=1437 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=267 ttl=59 time=1481 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=268 ttl=59 time=1235 ms
64 bytes from pubweb.internode.on.net (150.101.140.197): icmp_seq=269 ttl=59 time=564 ms

All I can say is...gg.