Leashed Happy ghast makes the game lag

when you leash a grown happy ghast to a fence each time it pulls away or tried to go somewhere the game suddenly stops, everything will stop the sound, items falling, mobs moving and etc, it always happens when the happy ghast tries to follow something or etc, the leash getting pulled just lags the game out, I've tested this on other devices and the same thing happens, also the hitbox of the ghast is glitched causing it to suffocate when being against a wall

steps to reproduce:

1. spawn in a happy ghast and leash it to a fence

2. either make it sit on the ground or try to make it follow u ny using a snowball

3. watch the lag as it pulls the rope/stays on the ground

observed results: bad lag that slows the game down and makes it unplayable

expected results: no lag