Minecraft version - Minecraft 1.20.1
Mod loader - Fabric 0.17.2
Mod version - 1.8.6+1.20.1-fabric
I am using the latest version available - Yes.

Describe the bug
Both Swords and Axes swing absurdly fast, perhaps once every tick if held down. It's so fast that the animation is played too quickly to be viewed properly.

To Reproduce
Steps to reproduce the behavior:

1. Open up a world.
2. Attack with a sword or axe.

Expected behavior
I'm expecting weapons to be swung at a reasonable pace and I am expecting the animation to play at the correct speed.

Screenshots or video recordings
(https://drive.google.com/file/d/1c34J3ddqDarMcmJo8Qez9gX5ZdjTCfU-/view?usp=sharing)

Additional context
Here is the Modrinth Pack.
(https://drive.google.com/file/d/1bLiw41nnR6BIEzVQ5OrMoFDQsAJsc6RV/view?usp=sharing)

I created a test instance that only had Better Combat installed, and this issue didn't appear, so I can only assume there is a mod conflict that is creating this issue. Which mod causing that conflict is beyond me.

Oh! I found the conflict, it occurred to me that "Attack Speed" was visible with only Better Combat installed, but Legacy 4J hid that stat. I check Legacy 4J's config and sure enough there is an option that enables "Legacy Combat," which does conflict with Better Combat.