This mod fixed the bug (MC-249136) of the sunken ship group in 1.19.2/1.20.1, preventing it from lagging for a long time.
Minecraft fixed this bug in version 1.20.5, which only ported the fix method of the main body to Mixin.
In version 1.20.1, when used in conjunction with Async Locator, the effect may be even better!