Do IVs affect a Pokémon's motivation degradation in a gym?

Say I have two Pokémon (let's just say Vaporeon) in a gym and they both have the exact same CP.

Vaporeon 1 has an IV score of 100%, which means that Attack, Defense, and Health have a perfect 15/15 score.

Vaporeon 2 has an IV score of 10% (or less), so basically, it has the worst stats when it comes to Attack, Defense and Health.

Will their motivation deplete at the same rate, when placed in a Gym?

Will Vaporeon 1's motivation deplete slower or will they both degrade at the same rate?

The only thing that appears to affect CP decay is the original CP of the pokemon.

If its CP >= 3000, it will lose 10% of its original CP per hour. If its CP < 3000, it will lose ~1% of its original CP per hour.

Numbers from this Reddit thread