Airline Transport Pilot type rated in E145, CL65, E170 and E190 aircraft with a few years of real flying under my belt. Most glaring problem I have seen with X-plane 11 (latest version I just purchased and d/l'd last night) has my aircraft (SSG E170, x-crafts 175, default 737) skidding all across the runway with a >5kt wind. Furthermore, the weight of the aircraft doesn't seem to have any effect with the wind as once the aircraft comes to a halt/complete stop, the 5kt and > wind will "push" the aircraft(s) across the ground and wx-vane into the wind. Being a real life EMB175 driver, it seems a bit impossible for an 85k lbs aircraft to be pushed by a 5kt wind. Numerous landings under my belt with 45kt crosswinds that still result in <30kt xwind component and when the airplane touches the ground, the tires stick and the aircraft rolls down the runway. Once stopped, the aircraft does not slide on the ground (even on ice covered ramps) in the wind. Furthermore, the "lack of ground friction/traction/etc" will not allow a normal takeoff with proper control input to be made. Roughly about 80kts, the aircraft will uncontrollably wx-vane into the wind and go off the runway. No amount of control input corrects the undesired flight condition. Any fix for this? Hopefully, soon as I am brand new to xplane (again, just bought it last night) and already seeing issues that I wish I would've known about prior to purchasing.