The "Road to 60" Buff question

[1900]

is it possible to disable this buff somehow? as a new player I'd prefer to do all the content in the game without overleveling it so quickly

You can't. But you don't outlevel too quickly. Instanced Story Content is synced what means if you want to do a Lvl 50 you will be scaled down to max. Lvl 52 for this specific Content even if you r i.e. lvl 60