I've still not heard if splash damage have acknowledged the 2 main issues that have been posted around the forum like graphics rendering and lag online. i read one guys post saying that the xbox patch did nothing to help the problems. i know the xbox is old but as pointed out other people there are a lot of other games out there that run great and look great online. an example would be red dead redemption which had a massive online map to play on and it had zero issues. so have splash damage said to anybody the game will look and run as good as it looks in the brink vids they posted prior to its release.
As far as I know they have not released a patch since release date to address the issues stated above. They will fix the issues but everyone just needs to remain patient while they do.