Beta 2 has been better for me. Smoother UI experience, less jitter, jankiness, and lag. Phone feels faster than beta 1. So far battery life has been about the same, which is not great but maybe it'll be better after it settles for a few days.
Some users have experienced better results with beta update and other users not so much. As every ones device is setup and used differently, In order for us to be able to resolve an issue best thing would be to send your error reports in. 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 member’s app -> Beta Feedback -> Error Reports to help us debug the issue. We apologize for the inconvenience and appreciate your contribution to the beta program.
