Razer Blade Pro Gtx1080 w/ Core x

Hello I had a question if I were to buy a core x with a rtx 2070/2080 would there be performance or connectivty issues or would the laptop and the core work together. I was wondering because my blade pro has cooling issues and is no longer under warranty and figured the core x would help. Also if a core x is installed to a blade Pro with 4k can you run a monitor on 144hz or would it still be limited to 60hz Thank you sorry for all the questions