When finish using main-hand items ,players will start using off-hand items immediately if realse the mouse key not fast enough.

This could be very annoing ,or even fatal ,in some conditions.

For example ,when players fiying with elytra with crossbow as their weapon and damaging fireworks on the off-hand trying to eat ,they will be forced to use the damaging fireworks as elytra fuel after finish eating ,which cause damage to them.