Hey guys, first time im posting: Im having my MacBook since 2008 - its the MacBook (13-inch, Aluminum, Late 2008). I changed to Mavericks i think 2 years ago? and since then im feeling perfomance decline. But now i reached a point its just too troubeling. I can barely watch any streams or youtube, without it getting really hot and loud. Most of times surfing alone is a hassle..and im talking about 1 Tab, and no other apps running. So i tried everything i can. 2-3 years ago i already put in a SSD, i replaced it a few months ago with a better and bigger one. Back then the SSD really did change it, but that was on Snow Leopard. I just freshly installed El Capitan after a format. I just put in 8GB of Ram, i used to have 4gb. I cleaned my dock, i cleaned my desktop, i did a few of those "apple troubleshoots". But nothing is helping. What are my options? Try Snow Leopard to see if that helps? What can be problem right now? The processor? Or is it simply an old machine and it cant be helped? There are no process running, i keep checking the system activity, etc. Nothing seems to help :/ Right now i feel like it must be the cooling system ... cause it gets hot and lout really fast. Maybe its time to let it clean by somebody and replace the fluids to help it cool? or what is there to replace? sorry for the broken english, and thanks for any input!