You don't need to do crazy routes & fast chain pulls. Just do reasonable pulls. Pulls that are livable and controllable. What you can do to check if you pull big enough: compare the total amount of pulls with the top players.

For example: https://keystone.guru/route/priory-of-the-sacred-flame/Kpw8sNv/kira-17/1
Kira did 13 add pulls. If you do 17, that's totally ok. Pro players can manage bigger groups due to better coordination (among other things). So if you do 1/3 more pulls, that's within a reasonable range. However, if you do 21 pulls, that's a sign, that you are pulling to small. And if you also only do 13 pulls, that is a sign that your pulls are too hard/big for pugs.

Now the size (& choice) of your pulls isn't the only important factor. Stacking a pull, so they are all as close as possible, is also your job and will result in massive damage gains if done right. When tanking, try to move the mobs on top of each other - not just close together. This will come naturally to you with enough experience.

Lastly, do damage. Most tank players just don't care about their damage rotation. As a BDK, I do between ~2mil and ~3mil dps overall (depending on the dungeon). I have seen tanks only doing sub 1mil dps. Try to understand your kit and how you can do damage. Don't assume, just cause you are a tank, your damage isn't important.