At this stage it is very important that you do not die, as spawn timers will skyrocket and your team will be at a great disadvantage if outnumbered and without your damage.
Maybe the enemy is standing close to a wall and you need to get away.
At this stage of the game your main priority should be farming and making picks if you are ahead.
It's phenomenal with as the burst will proc the Chemtech buff and apply 60% Grievous if is also attacking the slowed targets.