A couple things you can do here:
1)
Power Settings - Believe it or not, the default fan settings for your SP while on battery power is "Passive", in other words, no fan. Saves power, cooks your rig. Brilliant. Anyway, you can change this by going to
Control Panel > Power Options > Balanced > Change Plan Settings > Change Advanced Power Settings > Processor Power Management > System Cooling Policy > On Battery (Change this to "Active")
2)
ThrottleStop - Yes, as your SP heats up above 80C it will throttle the CPU; however, if you are gaming that will not make you happy. What you can do to avoid that is download a free app called
"ThrottleStop" that will keep it running full bore. The good news is your SP won't heat up much more than 80C no matter what so the throttling really is unnecessary.
You can do a full read on
ThrottleStop and how to make it work here:
http://www.surfaceforums.net/forum/...stop-running-your-surface-pro-maxxed-out.html
** Your SP will get MUCH hotter than the average tablet. Power = heat and this unit has teenie tiny little fans so it is to be expected. A good case or the keyboard flipped back will prevent your digits from getting scorched.