[Matt]

It looks like there might be some congestion with Telstra Global (The transit to your ISP) and Korea Telecom which you can see on hop 9.

traceroute to * (*), 30 hops max, 60 byte packets
1 119.81.33.41-static.reverse.softlayer.com (119.81.33.41) 6.514 ms 6.552 ms 6.600 ms
2 ae11.dar01.sr03.sng01.networklayer.com (174.133.118.130) 0.230 ms 0.232 ms 0.270 ms
3 ae8.bbr01.eq01.sng02.networklayer.com (50.97.18.196) 0.331 ms 0.376 ms 0.374 ms
4 unknown.telstraglobal.net (202.126.128.17) 1.478 ms 3.295 ms 3.290 ms
5 i-0-2-0-0.istt-core02.bi.telstraglobal.net (202.84.243.73) 2.780 ms 2.780 ms 2.775 ms
6 i-0-5-0-0.hkhh-core02.bx.telstraglobal.net (202.84.249.157) 37.406 ms i-0-3-0-0.hkhh-core02.bx.telstraglobal.net (202.84.249.161) 36.904 ms 36.946 ms
7 i-0-0-0-0.siko-core03.bx.telstraglobal.net (202.84.144.73) 90.500 ms 90.417 ms 90.378 ms
8 i-0-4-1-0-peer.siko02.pr.telstraglobal.net (134.159.125.117) 88.385 ms 90.704 ms 89.375 ms
9 korea_telecom-peer.siko02.pr.telstraglobal.net (134.159.125.118) 280.057 ms 279.883 ms 279.782 ms
10 112.174.83.137 (112.174.83.137) 204.081 ms 203.292 ms 203.215 ms
11 112.174.8.213 (112.174.8.213) 210.590 ms 212.790 ms 212.760 ms
12 112.174.19.54 (112.174.19.54) 197.406 ms 195.165 ms 195.143 ms

I have gone and made a support ticket and am waiting for a reply.