u can't say all bags are slow i have seen plenty of rides rollin bags that are faster than hydros it just depensds on what u by u can go with 1/2 blitzluft valves and slam bags and there crazy fast push the psi up to 175 and u r hopn. u can go even more and go with slam bags dual 1/2 inch ports and those are just wicked. so bags are just as fast as hydros if u dothe right setup