One of the problems that's been plaguing Brink is severe lag in multiplayer games. Developer Splash Damage promised it would try to address the problem, and it now says that a forthcoming patch will "improve network performance."
A post on the Bethesda blog says the update has already been submitted to Microsoft and should be available on Xbox 360 next week. That's also the targeted date for a patch on PlayStation 3; that version had been held up by the PSN downtime, but the 360's fixes are being brought to PS3 "quickly and we expect to have it out next week. Stay tuned!"
The PC version isn't being ignored, either; it will be getting a patch "early next week" that fixes various issues (sound dropping out, graphical performance, character voices resetting) and improves both the server browser and dedicated server. Patch notes will be released alongside the patch itself for those who are interested in the full rundown.
Until the console versions are patched next week, some tips are provided for avoiding laggy matches. You can check those out here, but don't expect any magical solutions before the game is updated.