[Q] Problem with widget restart after exiting app. topic

Hi.

just got a new LG g3, ( auro 2Gb version).
and mostly it`s working really good. But comming from a old Note 2, i`m a little dissapointed in how "laggy" it is in some parts..

When i get the different apps up and running it`s seamless, and launching them is about the same speed as the old note 2.

Screen responce is also good,
But the problem is when exiting a app ( facebook,game,sms or any other app that stays open for more than 2 min. )
It seems like it is closing the "background" apps like widgets and the launcher in general, so when i exit, the launcher is empty for about 2-5 sec ( it acts just as when you restart your phone, it just takes a few sec for all apps\widgets to start)
this only happens if i`m using a app for a few min, if i just go into one and exit within a shirt time it acts normal. ( with my note 2, if i pressed the home butten, it was back into the launcher within 1 sec with the launcher screen fully populated. )

Is this something others are seeing to? I might not be used to the phone yet, but my old note 2 seems more "seamless" in user interface...= better software. )