block-break-limit:250# Block break limit in milliseconds
This options modifies how fast a player can break the block. Basically when he mines the block he can mine it again after the specified time passes. The time is specified in milliseconds.
Hologram update interval
hologram-update-interval:-1# Hologram update interval in ticks
This option limits how fast a hologram can be updated. When set to 0 or lower updating is instant. When that number is greater than 0 the hologram changes periodically. Time is speficied in ticks (20 ticks = 1 second).
Offline rewards
If offline rewards are enabled. Players will only receive rewards when they are online. If they are offline at the time they receive a reward, then they will receive when they connect to the server next time.