Bug Fixes:

Fixed Sculk Sensors/Shriekers no longer spreading properly.

Changes:

Re-arranged thread sleep times to properly match up with Sculk Growths.

Previous Update's Changes:

Added new gamerule: sculkThreading, which is enabled by default.

-When this gamerule is enabled, Catalysts will spread Sculk using Multithreading. This saves a lot of processor power and helps a TON with performance, so I recommend you leave this gamerule enabled.