question about timed entry slots (harry potter)

we're going to usj this august but we didn't avail any express pass so we're planning to go there early in the morning. our main plan is to go first in nintendo world followed by harry potter and the forbidden journey (ride). do we still have to get a timed entry slot for the ride or can we just fall in line once we arrive at the harry potter area? also curious if there are time entry slots for jurassic world, jaws, and waterworld? thanks!!