archaicfix.cfg has default values
If create a new world and fly around it for a bit, "broken chunks" appear.

Img 1 - Cascading worldgen lag
If you enter the same world without the mod, the chunks will be able to load.

Img 2 - Generated chunks without ArchaicFix

Ing 3 - Console log
My mod list
- Angelica [2.0.0-alpha25] by eigenraven, mitchej123, glowredman, caedis, vlaetansky, karyonix, sonic ether, id_miner, daxnitro
- ArchaicFix [0.7.7] by embeddedt
- Backpack Edited for ModdedNetwork [2.6.8-GTNH-pre] by Eydamos
- Better Loading Screen GTNH [1.7.4-GTNH] by AlexIIL, jackowski626
- BetterBuildersWands [0.13.7-GTNH-pre] by Portablejim
- BetterQuesting [3.8.28-GTNH] by Funwayguy
- Biomes O' Plenty [2.1.0] by Adubbz, Amnet, Forstride, ted80
- Chisel [2.17.18-GTNH] by tterrag, Drullkus, minecreatr
- ChunkAPI [0.8.1] by FalsePattern
- CodeChicken Core [1.4.10] by ChickenBones, GTNH Team
- CoreTweaks [0.3.4.0-GTNH] by makamys
- CosmeticArmorReworked [1.7.10-v7] by zlainsama
- Custom Main Menu [1.13.0] by lumien
- Damage Indicators [3.3.2] by rich1051414
- Default World Generator [1.7.10-0.1-b13] by FireBall1725
- DuraDisplay [1.4.1-pre] by Caedis, ghostflyby
- Ender Zoo [1.3.3] by crazypants
- EndlessIDs [1.7.1] by FalsePattern
- FalsePatternLib [1.10.7] by FalsePattern
- GTNH Lib [0.9.31] by mitchej123
- Hodgepodge [2.7.82] by mitchej123, GTNewHorizons Team
- Immersive Cavegen [1.2g-hotfix5] by TCLProject
- Infernal Mobs [1.10.3-GTNH] by AtomicStryker
- Inventory Bogo Sorter [1.3.21-GTNH] by brachy84
- Iron Chests [6.1.8] by cpw
- Mantle [0.5.1] by mDiyo, Sunstrike, progWML6
- MineTweaker 3 [3.4.2] by Stan Hebben
- MobsInfo [0.5.10-GTNH] by kuba6000
- Mod Name Tooltip Unofficial [1.7.10] [1.0] by ExampleDude
- Mod Tweaker 2 [0.12.0] by Jaredlll08
- ModernKeyBinding [2.1.0] by Tapio
- ModernMarkings [0.3.12-1.7.10] by jurrejelle
- Modular UI 2 [2.3.44-1.7.10] by brachy84, Rongmario, CleanroomMC, miozune (1.7.10 port)
- NEIIntegration [1.5.1] by tonius11
- NotEnoughItems [2.8.71-GTNH] by ChickenBones, mitchej123
- Sleeping Bag [0.3.0] by npo6ka
- Special Mobs [3.7.2] by FatherToast
- TiC Tooltips [1.2.5] by squeek
- Tinkers Mechworks [0.4.1] by mDiyo, fuj1n, ProgWML6, Sunstrike, Pillbox
- Tinkers' Construct [1.14.30-GTNH] by mDiyo, fuj1n, ProgWML6, Sunstrike, Pillbox, boni
- UniMixins [0.2.1] by makamys
- Waila [1.5.10_1.7.10] by ProfMobius
- Waila Harvestability [1.3.4-GTNH] by squeek
- What Are We Looking At [1.3.3-GTNH] by Darkhax
- World Stripper [1.0.0] by EwyBoy, Moze_Intel
- WorldEdit [6.3.0] by sk89q, wizjany, TomyLobo
- Xaero's Minimap [21.10.44] by Xaero96
- Xaero's World Map [1.14.1.33] by Xaero96
- Ztones-Unofficial [2.3.2-GTNH] by SinTho0r4s
archaicfix.cfg has default values

If create a new world and fly around it for a bit, "broken chunks" appear.
Img 1 - Cascading worldgen lag
If you enter the same world without the mod, the chunks will be able to load.
My mod list