Android Nougat 7.0 vs Battery saver

[V MP]

I have noticed on my new Huawei P10 - Version Nougat 7.0 that whenever I put it on Batter Saver mode (not the Ultra saver mode) background apps and functions are being disabled, especially the email sync.
Whenever I open my email client (in this case a trial BlueMail and Typeapp) I am being asked to enable Sync; I click to enable but nothing happens. It keeps asking me to enable it and the whole syncing facility is staying all greyed out, i.e enabling is not working.
Then I go to settings/accounts and manually sync the accounts, it does sync but automatic sync is still greyed out on the top right corner.....

Is this a characteristic of the Android 7.0? If yes, what is the point of giving us the option to save battery?

Is there a solution to get around this by any chance?

Thank you.

 

[anon(238680)]

The solution is to manage each app's battery usage manually or disable the battery saver. Can't have both, and yes, that is characteristic of N.