Why did six flags change the way Superman drops at the Dallas one?

The superman used to go all the way up really quickly then sit at the top for a while, building up the pressure/scariness then drop all the way super quick, but now it just kinda slowly bounces down... why?|||I'll ride it and tell you if it's slow or not. lol They sped up our Superman! At Magic Mountain it will now launch backwards!!!! Can't wait to try it!!!|||Dropping at the dallas one is a first-class idea