Currently QuestieProfessions:Update triggers AvailableQuests.CalculateAndDrawAll on every skill update. We can improve this, because only a few skill break points are actually relevant for quests (25, 50, 75, ...).

Keep in mind there are some quests/crafts that give you 5x skill points, and if you check specifically for 25, 50, 75, they might never trigger.

Yeah, we need to make sure to change this check for available quests, not objectives. We might also be able to ignore some professions entirely.