Yeah.
The first app that you absolutely need to uninstall is Clean Master.
http://androidforums.com/threads/an...ned-security-tips-and-avoiding-malware.36936/
It's absolutely nothing but snake oil, it's flat out lying to you and it's going to do the opposite of everything it claims.
It's going to waste power, slow down your phone, and leave you addicted to more CM placebo products.
Used ram has ZERO to do with how fast your phone runs or how fast your battery drains.
Zero.
This isn't an iPhone, and Clean Master is selling you a bag of goods.
Most of what it identifies as running in the background?
It's not running at all. Pure fiction.
Check out the thread above.
It's a long read but probably everything that you really want to know is there.
And yes - bloatware is a bad thing - because it wastes CPU cycles.
The above thread will guide you through tool usage to decide easily for yourself what else to disable, reconfigure, or lose altogether - beginning with the snake oil ok.