I was looking online about what to do about slow speed on android, i noticed some people mentioned apps like facebook and the messenger supposedly makes the overall system slower. So i wasn't sure about it but wanted to ask if anyone else had ideas? I would assume is cause is a app that constantly running even if you aren't using it, even starts when you reboot system so i dunno, maybe.
Ok, for this we need to break it out a little bit.
First of all, it all depends on the specs of your phone, sure you can have 6gb of ram, but if its a chinese clone, with a mtk processor, evntually will get slow with some apps.
Not, let say you got a Midium End phone, a galaxy note 4, most of the times it would run alright, tough, every carries has its own BLOAT on the phones, thats why its always recomend to debloat the phone, or install a custom rom, this depends on your needs.
Also, some apps are pretty high memory use or not optimized, Facebook, trough the years has incfeased the size of the expandable data on the phone by A LOT, and uses high amount of ram, even on idle, so does messenger app.
Now, this also depends on the size of the storage and the ram, as well as the partition of the system, kernels also do their job here.
Several apps also include Memory leaks which decrease the phones performance.
If you do not desire to root your phone, and the apps causing the issues are System Apps, you can always freeze them, some apps cant be freezes by disableing them via phone, they need to be disabled via PC with some apps ;D [No root needed].