You can only do so much from your end.
The usual like making sure your ports are forwarded on your router:
TCP port 80
UDP and TCP port 3074
UDP port 88
UDP and TCP port 53
TCP port 443
Also host the games yourself and wait for around 5-10seconds before accepting a game to see if it changes form green to yellow.
Most of it will be the other person. yay for Britain's and Capcom's netcode!
Just watched Street Fighter: Assassin's Fist.... WOW Not only is it ace coz its SF but as a stand alone movie it's really well done! Can't wait for the next one, apparently it's a series.
Loved the Dan reference!!
Blu ray is out the end of October, will probably get it for the deleted scenes.
The next one is supposedly title the world warrior. Fingers crossed we'll see tonnes of characters introduced, really going to be interested how they get their moves in.