Bug: If a pet has deflecting, and arrows fall from above, deflecting repeatedly spawns shields and can cause an FPS drop.
Expected behavior: The arrow bounces off and lands on the ground.
How to recreate: Fire an arrow from above using a dispenser, or just get lucky from a skeleton or pillager shooting.

Version: domesticationinnovation-1.4.2-1.18.2
Forge - 40.1.60

The below picture is from a single arrow. More arrows creates more shields and it gets worse. This is probably a pretty minor bug but I thought it was worth noting.