I saw you guys were having some issues with VPN server connections. Although I am no longer a vyprvpn customer (I just made my own VPN on a vps I bought), I may be able to give you some ideas, especially since I had to do extensive research to find good servers.
Disclaimer: this is in general how it'll work. Since vyprvpn operates its own network, the real situation may be different.
If you are VyprVPN staff, I would also recommend you read this.
China has 3 main ISPs: China Telecom, China Unicom, and China Mobile. International bandwidth is limited, and very expensive (only 5Tbps in 2015 for a whole country). If you want good speeds, China Mobile is the best, then China Unicom, and lastly China Telecom. In other words, try to go with either Mobile or Unicom. That's not alway possible, as China Telecom may hold a monopoly in some areas.
So, the best all-round connections are:
South Korea's Korea Telecom (NOT SK/LG).
Taiwan's HiNet (SeedNet is still ok, but not the best)
Hong Kong and Singapore's PCCW
These will be good for CT, CU, CM. I can watch 4K YouTube on those.
Also good are:
Los Angeles' Zenlayer, Quadranet, and Pyzches
South Korea KT
South Korea SK
All the above and
South Korea LG
Singapore Leaseweb (cheap and VERY good for China Mobile)
Since I don't know which backbone VyprVPN has chosen as upstream providers, I can't guarentee the performance of their respective locations.
Oh! And one last note, if you wonder why the further away you are the better connection you get from china, then this is the reason:
Direct Transit to China Telecom and Unicom is more expensive for neighboring countries than for those further away to prevent competition. So to buy 1Mbps from Hong Kong to china costs up to $70 per month, but only costs $8 from the US. This means it's cheaper for US backbone providers to provide large China Bandwidth, than for those in Asia to do so.
So until that changes, you may be stuck connecting to far away countries for better speeds.
Anyways, hope this helps, and I hope VyprVPN will consider buying transit on one of the backbones I mentioned earlier.
Until next time!