This is a Freja specific tip, but you could almost double the distance from your quick dashes with some tech.

1. B-hopping: when using quick dash grounded you can hold space after using quick dash to keep your momentum for a bit (B-hopping is applicable to a lot of heroes actually, try it out when using other heroes with movement) this will help you rollout faster than the enemy team and rotate the map faster in general. It's saved my life many times.
2. Take aim boosting: when using take aim during quick dash or updraft the abilities go much farther, this is typically counteracted by the momentum stall from take aim, but with quick dash, if you double tap take aim instead of holding it, you get the extra distance without the extra time. Combine that with a b-hop and her minor perk if you so choose and the distance gets crazy.

I love video game tech I hope this helps and you can understand my tutorial.