Why is my Samsung Galaxy Reverb lagging when I have no active applications?

I have a Samsung Galaxy Reverb and it's pretty good for the most part (especially for a phone that was $100 new). When I play games like fruit ninja and robot unicorn attack, it gets a little laggy. I checked the task manager, and there is usually only 1 active application, but lots of running processes and services. The RAM is always high, but I read that it is supposed to be like that with android phones.

But why are there so much background stuff going on? Facebook takes up the most. Even when I disabled all notifications, logged out, and quit the program, it still took up 30MB of RAM! The Facebook messenger is also memory intensive.

Then again, based on what I read the high RAM doesn't even matter. So why do I get lag?

Update:

I read that this is a problem for others too, ever since the OS update to Jellybean. Some people experience freezing. I found out that disabling the "hotword detection" feature makes a huge difference, but it sounds like people were still experiencing the freezing after doing this. Unless there have been any fixes to this in the last month?

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How much space do you have left on the phone? (a lot of pictures, emails, text messages?) do you have a lot of apps installed? I would uninstall any that you don't use/need. When is the last time you rebooted the phone?

Originally Posted by tavenger5

How much space do you have left on the phone? (a lot of pictures, emails, text messages?) do you have a lot of apps installed? I would uninstall any that you don't use/need. When is the last time you rebooted the phone?

I'm only taking up half the storage memory-- mostly with apps. It's 2GB out of the available 4GB. I've downloaded 23 apps, and with the apps already on there (that I can't uninstall), that makes 61. That seems like a lot to me, but does that even affect RAM or CPU?

I should note that the lag in fruit ninja is very minor, unless I'm listening to google play music.

Best wish for you.