How to Make Shulkers Respawn Faster (Change the Respawn Timer)

Find the config file

After launching the game once with the mod installed, a config file is generated in your config folder. Open it with any text editor. Look for the entry named timeInTicksToRespawn. This value controls how long a dead shulker waits before it comes back at the spot where it died.

Set your desired delay

Minecraft runs at 20 ticks per second, so a lower number means a faster respawn. The default is 1200 ticks, which equals 60 seconds. If you want shells roughly every 15 seconds, set it to 300. For near-instant farming, try 100 or lower. The mod accepts values from 1 up to 72000 ticks (one in-game hour). Save the file and restart the world or reload the config so the change takes effect.

Test it in-game

Kill a shulker in the End and watch the death location. After your chosen delay, a new shulker should appear there. If nothing spawns, double-check you edited the correct config and that the value is a whole number. Very low values make farming extremely fast, so pick a number that still feels balanced for your playthrough.