Can I revert back from Marshmallow?

I recently updated to Marshmallow using the server links from the pinned topic. My Note 4 is a million times slower and the battery life is just horrid. Is there and way for me to get back down to Jellybean? I remember someone saying there's no way back to KitKat from Jellybean, but is there a way to get back to Jellybean from Marshmallow? Can I flash it with Odin somehow? I've come to terms with my Note 4 not being able to obtain root, but the performance on MM is unbearable.

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