Networking to China is always a problem because you're ordering a service in NL. The huge distance and latency impact network throughput because of that.
We're looking on different routes to China providers during next year, hopeing it improves the performance a bit. But distance and latency is just how networking works unfortunately.
Regarding hostloc. Those people order VPSes from us for torrent downloading, that's why our platform has so high load. Our VPSes shoudn't be used for these sort of purposes - it's enormous stress on HDD drives.