Battery life on 4.0 isn't good as on base OneUI 3.0 or 3.1. Turn on Power Saver until Samsung fixes itself.
Did you mean, power saving can limit apps? No, I haven't turned it off on my A51 since 3 weeks before lol😂😂😂
Only CPU will be reduced to 70%.
Some Samsung users say that the adaptive power saving drains more battery because Device Care stays in background and tracking your usage to put apps to sleep and to switch power profiles. Try to turn it off, maybe can help🤔