Speed secondarys

The speed sub upgrade chance in this game is pitifull. Why some should get great speed upgrades and others not is totally unfair for a game we are paying to play. This should be fixed...or stop charging us to play at the higher levels. Ive spent so much on this game and for a guy with less then half my total gp in my arena shard can beat me because he got better speed upgrades is really depressing. I hope at some point this can be done better since were are all using the same amount of credits to upgrade our mods...