that’s the average for me,too.
Fedimian is the easiest one, and if you want just a quick grab, you can get 200 attribute points in about 2-3 minutes.
This is by far the easiest one with the most lenient mess-up points (not in the first part,though, it’s annoying if you don’t know from where to jump and glitching off/through platforms happen a lot, or stuttering because it’s loading something, causing your jump to shorten) and the easiest to memorize with also the least direction changes.
I actually cleared it with all of my chars in about 4-5 minutes each, but it’s barely worth the time spent on the shard&scrolls (let’s not talk about the challenge mode entry vouchers, I got them on chars that will never ever enter challenge mode
), so the best option is to grab the 2-3 attribute point vouchers and restart with the next char.
That way you can get about 1000-4000 (or more) attribute points in about 10-40 minutes, depending on the number of characters.
This event is actually more like: “less is more” than trying to complete it (especially hard if the game dislikes your controller), and it’s a good reward given that we will have the new Classes in about 2 months, so it’s time to grab for these free attribute points and hoard them for Exorcist 
btw, I’m not using zoomy plus