Wow, octo. Just wow.
Anyway after playing it some more and specifically on good maps like ttt_fallout (yes it's good), there is no problem with haste. On maps, which are too big or don't have enough cover for the traitors, it sucks. You need more time for those maps because there are not as much places where you can make good kills from.
I've changed my option to Time Share. Though I would like an option for map specific.