Made collecting of taxes run in its own thread to improve performance. Also add batch processing to fine tune performance. Only use Batch Processing if you are still experiencing lag after this update.

New config entries for each tax:
Note: these options will be automatically added to your existing config.yml when the server is restarted after installing this update.

BatchProcessing:
# Set to true to enable batch processing only if you are experiencing lag.
Enabled: false
# How many to process in each batch. Decrease to decrease lag.
Size: 500
# Delay between each batch in Ticks. 20 Ticks = 1 Second. Increase to decrease lag.
Delay: 20