when i created a world it was extremely laggy and the log said this:

Farseek loaded a new chunk (-7, 24 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:30:50 FML Farseek loaded a new chunk (-7, 27 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:30:52 FML Farseek loaded a new chunk (-2, 30 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:30:59 FML Farseek loaded a new chunk (-4, 31 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:04 FML Farseek loaded a new chunk (-10, 29 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:07 FML Farseek loaded a new chunk (-9, 14 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:08 FML Farseek loaded a new chunk (-9, 11 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:09 FML Farseek loaded a new chunk (-7, 9 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:10 FML Farseek loaded a new chunk (6, 28 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:15 FML Farseek loaded a new chunk (-13, 21 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:19 FML Farseek loaded a new chunk (-12, 31 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:21 FML Farseek loaded a new chunk (-16, 27 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:23 FML Farseek loaded a new chunk (-16, 18 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:24 FML Farseek loaded a new chunk (-13, 17 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:24 FML Farseek loaded a new chunk (-15, 16 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:25 FML Farseek loaded a new chunk (-17, 18 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:25 FML Farseek loaded a new chunk (-13, 13 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.
21:31:26 FML Farseek loaded a new chunk (-13, 16 Dimension: 0) during chunk population, causing cascading worldgen lag. Please report this to the mod's issue tracker. This log can be disabled in the Forge config.

Thanks for reporting! Please follow #26 for updates.