I have a macbook Early 2015: i5 2.7gh, 16gb 1800mhz, 256gb ssd, El Capitan 10.11.6 I also have istat menus installed. the CPU usage shows around 11%. When I do general browsing at the same time, images loading and scrolling start to lag. This is on the latest Chrome. When Opera, everything is much much worse! Any suggestions? thanks!! Forgot to mention temp is around 50C.