Unity sampling/compressing animation issues

Hi guys,
I've always had issues with unity jiggling my animations but normally turning off resampling and anim compression works. This time though I've exported an animation that has an insane amount of stagger happening (in the gif) and I have no idea how to fix it. Keeping resampling and anim compression on still affects it the same way.

Some details :
Using Unity and 3dsmax
Everything is 60fps (the timeline, exported animation)
Reimporting it back into 3dsmax shows there's no stagger.
All bones were exported correctly
I don't use constraints in Unity
Exporting it in 30fps doesn't have the same issue with the legs, but has bigger issues on the arms.

Hope you guys can help!