Originally posted a comment on the mod's CurseForge page, got buried so I'm posting it here as well.

Currently, the camera tilts in the opposite direction when turning while gliding with an elytra by default, and it feels super awkward. Reversing the camera tilt in settings (using -1 instead of 1) feels much more natural. There should also be a setting to toggle this, in case for whatever reason the change isn't so nice.