Level Syncing is Becoming an Increasing Problem

[Mansion]

I can't help but feel that the simplest solution is:

Keep your current level's abilities, traits, etc... but scaling the performance accordingly. Of course, a lv 70 player with more abilities and features unlocked would do more than a leveling player, but they can adjust so this difference wouldn't be that discrepant.

Agree. Most people speedrun through dungeons anyway, let them have their full kit.
I would do those 50-60 / levelling / trial roulettes if I had that actually.