The past month or so my phone has been real sluggish so I installed RAM Booster. My phone is always low on RAM, why is that? I run the boost and it says it kills about 27 apps and gives me back 300+mb of RAM. I also clean the apps cache which can exceed well over 100 mb. My phone runs smooth for a bit after I do this but the ram and cache climb all the way up again in a matter of hours. What gives? Doesn't Android know how to manage these things?