Cintiq 13HD

Hello, My apologies if this is a strange question, but I didn't know where else to turn. I'm a digital artist working from home abroad. I don't have my tower available so I'm trying to create a at home laptop to monitor to graphics tablet setup. My laptop only has 1 HDMI port, so I used that...

used to get 300 fps with no drops, after switching the gpu i never got 300fps again...suffering with drops too hardware: i7-4770k 32gb ram 1080 ftw