As flute asked me how to make ping lower I will suggest some tips to improve connection :
- don't wifi, just ethernet...
- when you play, dont use the network with another application
- open your box ports :
Type 192.168.1.1 in your navigator, then connect to your box (password is "admin" by default). Find a way to go to "NAT/PAT" and add rule to open TCP and UDP ports 27000 to 27025.