Best Rom For Battery And Stability

[lucaz44]

Hi everyone,
I've currently installed Global developer ROM 6.9.29 on my Mi 5 but I'm not very happy.
Battery seems to drain very fast (10-15% overnight) and I have small annoying bugs (widget freeze, keyboard often doesn't pop up, notifications not always work)
I would ask you which Xiaomi.eu ROM is the best for system stability and battery performance.
Thank you in advance.

 

[Vaan0426]

For now is ROM 6.9.15