I've read a few posts stating that they can't remap the Bixby button on the Note 9. So, just wanted to let folks know that if you don't use Bixby then don't even bother launching it or setting it up and use the bxActions app to remap the button. It works with no issues or lag or it even doesn't try to launch Bixby first then what ever app I assign to it. Works seamlessly.