If you're trying to use glide as an evasive maneuver you need to be using triple tap jumps or descending double taps. They both make for very quick and agile feeling movements. You just have to master timing and distance. It requires button discipline and resisting the urge to let go of the chain. But try it. Next time you're sprinting with your warlock and you need to vault an object in front of you with no momentum loss consciously triple tap the jump button. Or just try it as you're sprinting with no obstacles in front if you and get used to it. Pro tip: make sure boost is on for the initial kick in momentum.