Hmmm, my experience in connecting from the UK, there's a few factors that can impact on your ability to get a decent lower latency connection from your end or not, something SSG (edit)can't(/edit) handle:
1. Don't use powerlines to connect. You're sabotaging your own connection before it even reaches the router/modem to the Internet in this case.
2. Don't use WiFi to connect. Same deal, just it's often less issues compared to connecting via powerlines. But you'll need to watch out for local interferrence and a whole bunch of other stuff, but can be mitigated in some instances at least unlike powerlines.
3. Don't use cheap motherboard or addon NICs. No seriously, there's quite often NIC's on motherboard (and on addons) that require the CPU to perform overhead for the NIC to drive it, which can be detrimental to overall performance as well inside DDO when there's lots happening on your system at the same time. Although this is less of an issue these days with modern hardware being likely to drive GPU and NIC without noticeable loss of performance, but on older hardware can be more noticeable.
4. Internet connection provider itself. It's very hit and miss in the UK. One BT FTTC (VDSL2) connection could be fine, but have a much lower connection (60mb/s rather than 79mb/s). Whilst another BT FTTC (VDSL2) connection could be terrible, even when having a higher connection (74mb/s rather than 60mb/s). This is a huge variable on its own unfortunately, and having a local server may not improve things. But of course, I'm also aware that many connections in the UK could be a lot worse than even what I typed here, so mileage may vary unfortunately if you are unable to secure a better connection (which is all too common over in the UK). The only good news I can add to this, is that with a decent connection even a lowly 8mb/s ADSL connection could have lower latency than 60ms for DDO. FTTP full fibre connections are not necessary for a decent connection.
5. In relation to ISP, if your connection is dynamically allocated to you, you can end up with a dud connection where someone had left a lot of connections flowing towards it. This can lower your latency as it unravels the jungle you got thrown into. But there's nothing that can be done here other than trying to disconnect and getting a different connection that's cleaner. But if you're on FTTC (VDSL2) here in the UK, the disconnections could trigger DLM (Dynamic Line Management) where it then introduces error correction to the line, and it then tanks your latency. So it's a double edged sword doing this.
6. Don't let anyone else run stuff that'll cause a hit to latency; letting someone hammer away at your connection whilst they wait for stuff to download and return stuff as well, is a recipe for disaster for online gaming, as if the switch, router, modem is unable to manage the traffic hit, it'll negatively impact on everyone else connected at the same time.
If there's anything here you notice you can change, you "might" be able to get a better experience with online latency with DDO. But yeah, there's a lot of stuff on the player side that could be harming your connection where even if we have a local server, it might not improve matters.
J1NG