Dude, not sure whether this violate the forum rules, but I found one great lower latency service name proxy4wow.
I'm staying in Aussie and it did help me lower my latency to 200-250ms~
Give it a shot if you find these useful.
Please only choose HK server group.
Quite cheap only USD4 per month, about hmm.. 25 RMB?? NOT sure..
Full link here - proxy4wow.com
Please give me a clap if it works great to u!!