The cave spider spawner is spawning them constantly without stopping causing hundreds to be there and lag the game. I removed the mod and it fixed it entirely, so it is this mod. I changed to the 1.0.4 version and it fixed it so maybe the 1.0.2 version needs to be removed if there is this big of an issue with it.

Yep, that was fixed in the following version. I won't remove the old versions though because that could break modpacks.