It's smoother but battery drains little fast. Animations improved old stutters removed but few stutters introduced. It stutters while opening few specific apps, the animation not synced with app screen, feels like after animation a frame is missing. ...
I'm also facing this problem. Frequently Jio network and the network of other sim is disconnecting and reconnecting. I noticed it daily 2 to 4 times. Maybe the recent December security update has new mobile network modem driver which is not optimised...
Check if your phone storage is full. I have updated it and no problem is found. The bugs existing in previous software is I think fixed. And battery drain is fixed a little bit and animation in 60Hz is smoother.