Not sure why, but every now and then my watch will start lagging all to heck. It's been this way before I upgraded, as well. Not sure why, but it forces me to restart my watch every time.
Thank you for your feedback. If you haven’t already, Please update Samsung Members app to latest version from Galaxy store and send us an error report immediately after experiencing the issue from the Samsung Members app -> Beta Feedback -> Error Reports to help us debug the issue. We apologize for the inconvenience and appreciate your contribution to the beta program.
One UI Beta Team