Annoyingly then, you've got the UK/Ireland XEU version, while I have th eUK BTU version and haven't had this update yet.
Also, just to add to my previous batter comment, its still rubbish.
Since my post I've factory reset and then restored from backup and calibrated the battery nothing is making a different and I'm not getting anything like the numbers on here or XDA.
Currently have 39% left. Its been off charge for 8 hr 37 mins and SOT is 2 hr 14m
This is your problem.
Do a clean reset. Do not restore from a backup.
Your backup is likely corrupt.