Although I play on EU, the only way to get sub 180-200ms from here is to use tunnelling. They work, for sure, but if you've got a major Internet bottleneck, like, for example, the maintenance of the undersea cable that took them 2-3 months to fully repair won't make things better.

WTFast used to work well out of the box but now I've gone back to using Battleping. Not sure if anyone knows but your latency varies depending on your server + external IP address your net is assigned to. I can go into detail if anyone is interested.
WTFast reroutes your connection so you can't actually see your actual ping via Resource Monitor. Battleping, however, allows you to. Same for Smoothping and other tunneling services. There's also Pingzapper which gave me the lowest latency to EU at one point but unfortunately places a 24-hour auto-ban on you if you connect via their tunnels to EU (fine on NA I think. give it a shot).
The trick to lowering your latency (for me at least, on EU servers) is getting the correct external IP matched with the correct tunnel server. For instance, on Unifi with an external IP of 175.XXX.XX.XX I can get about 200ms to Netherlands 2. With 2XX.XXX.XX.XX IP, I get 175ms. That's a whopping 30 ms difference and about 15 ms in-game.