I mean, you should take WF numbers seriously. The higher the damage the more damage you're outputting for your opening rotation regardless of the wildfire. Aiurily is right that there are many things to take into account when you compare your numbers to someone else's. You can ask for similar conditions to see if someone is doing something different and getting higher numbers but in reality it might be that you aren't keeping your GCD on CD and that you're clipping among other things. Just keep trying and your numbers will get better.