asus rog gl552vw

Hey All, My Asus ROG GL552VW won't turn on suddenly today. I have had issues in the past with the power button, but with just some patience it would work. A day ago the power button stopped responding hence I removed the button and cleaned it with just plain air. When I put the button back on...

I bought this laptop 2.5 years ago. Usually, my laptop is normally working when I used for gaming. It's always lag when I unplugged, but working normally when plugged. Suddenly, my laptop's performance slowing down. I dont even touch any setting before. Usually, I get 60+ fps on Dota 2 on...