Here's the stacktrace

[01:08:00] [Client thread/INFO] [dsurround]: Creating default SeasonInfo for dimension overworld
[01:08:00] [Client thread/INFO] [dsurround]: Attempt to attach world capability before mod is inititalized - silly fake worlds.
[01:08:01] [Client thread/INFO] [jei]: Registering mod plugins took 1.974 s
[01:08:01] [Client thread/INFO] [jei]: Building recipe registry...
[01:08:05] [Client thread/INFO] [jei]: Building recipe registry took 3.970 s
[01:08:05] [Client thread/INFO] [jei]: Building ingredient list...
[01:08:07] [Client thread/INFO] [jei]: Building ingredient list took 2.264 s
[01:08:07] [Client thread/INFO] [jei]: Building ingredient filter...

Just freezes and says "Not Responding" on the mc window

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I was using Enchantment Control and accidentally set the creative tab limit to 32767... it was trying to load 32k books for each enchantment