Retainer iLevel and venture returns

Retainer currently iL281.

Currently returns 7 Hakgai Manes or Manxasiri Hairs / hunting venture.

Whould raising her iL increase returns? If so what iL and to how many?

at il300 my retainer gives me 10 of everything and still takes an hour to do so^^

mine is i 325 and sometimes give onll nq and take same time...i think to reduce the time from 1 hour to like 40mins it depends on the class level...or idk but i think ilvl is only to unlock certain ventures and for quick explorations (like the higher ilvl unlocks "better" rewards) i may be wrong tho :d