What the plugin does:

Disables loading of distant signs for players.

Reduces client-side load in areas with a large number of signs and other block entities.

Improves FPS without changing gameplay.

Supports Paper/Purpur 1.21.1+.

Additionally, the plugin itself is optimized:

Uses cached sign position data.

Reduces unnecessary checks during runtime.

Works efficiently even on servers with a large number of signs.

If your server has a lot of decorative, informational, or shop signs, this plugin can help reduce unnecessary client load and make gameplay noticeably smoother.

config:

radius-blocks: 4  #radius of signs render

hysteresis-blocks: 1 #a gap to prevent unnecessary rerenders

throttle-ticks: 4 #render check frequency in ticks