Valorant recommended specs

Guys, can someone help me? I was checking Valorant recommended specs, and based off of what they say. I should be getting 144+ fps. However, I definetly and not getting that. I have a Surface book 2 which has an Nvidia GTX 1050, Intel core i7 8th gen, and 16gb of ddr3 ram. Normally, I get 180 fps in agent selection, but only 50 - 60 fps when in the actual game.