I have never seen anyone get vote kicked from a DF group for low dps nor can I think of a fight in which you would run into a shit DPS that could only be removed by vote kicking. If you can't carry a DF random through say Hakkue Manor HM then you are a shit dps yourself and have no business complaining about others dps. Can you even vote kick someone from a premade group I'm pretty sure you can't.