You will experience overheating issues with a laptop especially because x-plane is a very demanding application. I have a custom built pc. Consider a Desktop. X-plane isn't ideal for a laptop unless it cost $2500 or more. Lol
First up try the demo of X-Plane to test your system. As for your processor, it is decent although I would recommend a processor with 3 or more ghz. Depends on your budget of course. You haven't stated your graphics card however. You must have 2 or more gb of vram to get the best experience. I get 30+fps without HDR (I don't think it does anything, RTH solves my problem)
My Specs
Msi z87-g41 mono Outdated 4 yrs old
Gtx 970 4gb vram
My processor is 4yrs old so I need to upgrade i7 4770k @3.5ghz
16 gab RAM